[RP Log] Lucy and Jane (F/F to F/M, TF & TG, double feral TF, incest & twins, impregnation)

Story by maxinered on SoFurry

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#3 of RP Logs

Another nice RP log. This time a twin pair get their wish fulfilled, in an unexpected way.

Enjoy~


Jane scurries up the stairs, trying not to trip over the lovely dress she's put on. It's an important night for two reasons. One, her sister and secret lover will be here soon, and it's the anniversary of them accepting their love for one another and becoming a couple. The two still live apart to maintain appearances, and see each other often enough, but anniversaries for them tend to be magical. Often the two stay in and dress as nicely as possible before falling into the other's arms for a night of passion. Tonight will be different, however. Jane has not gone all-out on her looks. She does not have on stockings or even heels, which are almost her signature. She prances about barefoot in the dress. Even her face, completely make-up free. This leads into the second reason tonight will be important... She picks up a small box from the side of her bed, then scurries back downstairs where she intends to meet her sister. She knows this will be a night her twin will NEVER forget.

Lucy herself wore jeans and a jacket over her dress. She put on high heels, stockings and wears a black corset under her jacket, while she is on her way to her sister and lover. Tonight was really a special night for them both. That is why she dressed herself more sexy than she would have normally. The young girl arrives her sister's apartment a few minutes walking later. They both remain close luckily, but work on different places, to reduce suspicion. She took the key of her sister's door and opens it quickly before she sneaks in and gives her a tight hug, before she takes off her jacket and smiles. "Tonight is our big night again Jane. I hope you are prepared?"

Jane hides the box by the fireplace, which is currently lit. She's set out the nice fur rug, where the two will presumably start. She then goes to greet her sister, embracing her quickly and giving her a deeply passionate kiss. She then rocks back to regard her sister. She's fabulous tonight! All dolled-up... Lucy would notice though Jane's lack of extras. No jewelry other than the pretty earring loops that Lucy gave her years ago. No make-up, not even shoes! It's atypical of her normal behavior, so Lucy may suspect something is up. Before she can ask, Jane smiles at her. "I have... the biggest surprise for you tonight, my love," she says in a lusty voice. She turns, tiptoeing toward the rug in front of the fire, where she kneels, inviting Lucy to join her.

Lucy smiles, she notices of course her change, but before she can react her twin speaks up and settles her mind. Some big surprise sounds fantastic. She loves surprises and from her sexy twin all the more. "So why don't you lay down on the warm rug and let your big sis take care of her cutest lover?" She is the older of them both, even only for three minutes or so. But that are the boundaries twins like them like to think. Her heels click-clack tender on the concrete when she walks over to her sexy sister and lays down to let soft fingertips run over Jane's pale and equally soft skin. "You know I love surprises my love, so don't let me wait longer and show me what you have in store."

Jane settles in a cute pose, waiting for Lucy to come over. She's quiet at first, but does lean into the soft hands touching her. She's prompted to spill the beans. She might have liked to wait a little longer, but she tends to do what Lucy asks of her. She chews her lip a moment, but then sits up. "I-I know you've wanted a dog..." she says, letting the words sink in. She rises onto her knees and cups her sister's cheeks. "I know... how much you've talked about... wanting to be with one. The pictures you have, and the videos we've watched. I know how deeply that desire of yours goes..." She stops, to let Lucy react, before she goes on.

Lucy listens carefully and always caresses her sister while she talks. "You know my computer is full of pictures and videos of girl who let themselves fuck by cute dogs." Her hand trails up Jane's side and cup one of her shapely mounds. "But you know I can't afford one, I just get enough money and bills are coming in." She squeezes her twin's breast now, before she caresses her nipple tender. "And we both know that, why do you bring this up my love?" She is really curious why her twin sister brings that topic up, just on their special day and has no clue she could have an item to full fill her wish.

Jane begins to smile, wiggling while being touched and caressed by her sister. She clicks her teeth to say, "Well, I've been saving up..." she says, pausing just long enough for Lucy to get excited about the prospect of owning a dog. "...But, I didn't get you a dog." She pauses again, this time not as long, since this likely deflates Lucy, and she wants to perk her up again. She leans away to the side, picking up the box she set aside. She then settles back onto her knees and offers it as a gift. "I got you this..." She waits for Lucy to open it, at which point she'll see a simple black leather collar with a blank dog tag on it. Jane moves closer to her sister to kiss her cheek while she examines it. "It's very special..." she whispers, starting to shiver nervously. "Whoever wears it... becomes a dog. Permanently..."

Lucy smiles wide when her sister tells her she saved, but that goes quickly, when she then tells her that she couldn't get a dog. She continued for a moment to caress her sister, but took her hand away then, a little disappointed and waits for what comes next. The box was really a surprise for her and she took the collar in her hand to look closer over it, while Jane explains. She sees that it has a tag to it, but no name shows now. "You mean, whoever wears this collar, becomes a sexy dog?" She can't quite believe was her twin told her, but then. She heard of items that seem magical and can change bodies. So maybe she is right. Lucy stays up in an instant then and looks down to her sister and lover with a smirk. "I think you want me to put in on you? So be a nice doggy and sit, while I put it on your neck." She waits for her sister to get in position, before she put it on. She even tests that the collar isn't too lose or tight, before she gives her a loving kiss. The collar's tag changes while they kiss, to show 'Jane' in the front and 'Lucy's pet' on the back, but none seems to pay attention to that now.

Jane sits while Lucy looks and inspects the collar. She begins to pant nervously... She's been waiting for this for a long time. She knows Lucy loves her... but her fascination has been growing increasingly intense. She's known for a while that Lucy will only truly be happy with a canine companion. In researching, she finally came to the conclusion... that she'd be willing to give herself up to be Lucy's perfect lover. Still, she's very nervous. She knows there's no turning back, and she knows what will happen to her. As she's instructed, she sits forward on hands and knees, 'obediently' watching Lucy. She swallows hard before going forward with it. "Put it on me..." she whispers, ready to change for her sister and lover. She sits in place, and begins to kiss Lucy when she feels the collar slip around her neck... This is it!

Lucy smiles when she broke her kiss. She is actually happy that her sister and love gives her body away. She simply thinks her mind will be save in the new dogs body and isn't aware, that she might loose her twin and lover. "It looks so well even now on you Jane.", whispers she, before she gives another tender kiss on her sister's lips and sits down again. "I'm so happy you make this decision. We will always be together now. As you get another form, we don't have to live separated. I take you to my apartment as a cute doggy." She is amused about the thought and of course the hot breeding that will happen. Lucy looks her twin over again to see first changes, but she doesn't see fur sprouting or something like that. No, it seems more that those magic wants to change another part first and makes Jane's clitoris grow. They both can watch how it growth in size, becomes five inches long in mere minutes and reshapes into a more phallic shape. Lucy smirks when she sees that and lowers her head. "Ohhh, you don't mind Jane?", whispers she soft, before her lips engulf that new sensitive tip with a lewd kiss.

Jane pants a little more, feeling the collar start to work. She fidgets a little from the sensation of something changing, something creeping through her form. She bites her lip, but does return all the kisses. She tries to smile at Lucy's words... eventually nodding. "I'll - I'll be your puppy. You can play with me, and - and every night we can be together..." She tenses a moment, then starts to feel herself change. A hand falls, pulling the dress up and away from her middle. She's naked underneath, and she sees the first of the changes! Yes, she made sure to find the right collar. One that would make her into the kind of dog that Lucy wants -- one that could fuck her. She stares in disbelief, watching as her womanhood begins to change, reforming. She's going to lose her humanity and her femininity, as she becomes Lucy's male dog. She whimpers at the kiss, because it feels good. "Mmph...!" Lucy only loves this girl more now. She gives up her human body only for her and this cock is simply fantastic. She has a few times with boys before and considers herself more bi, than her lesbian sister. Jane herself never saw a cock before, except on pictures and can't handle the alien feelings her sister's mouth bring to her. It feels so strange, similar to have her clit licked, but completely different and much more intense. She would be moaning quickly from Lucy's eager tongue. Lucy herself got quickly lost in sucking her sister off, as she loves every moment of this lewd picture of one sister giving the other a blowjob, who is to become a male dog soon.

"Ah... ahhh..." Jane moans above. True, she's only ever been interested in girls. Lucy specifically. This is a weird sensation for her, but not entirely foreign. She still understands and enjoys the pleasure to be gained from it. It feels good, even not fully formed. Though it is growing and changing shape fast. Jane looks down in time to see Lucy trying to suck the whole thing into her mouth. It's growing sharp at the tip, tapered like it should be. The base grows a little, forming what will be able to swell into a knot. And balls are beginning to grow and become visible as well... lightly-furred, which causes a chain reaction. More fur begins to spread out over the area between her thighs, and then out along her legs and stomach. Black in color at the moment. Jane pants a little more, watching as her pussy completely disappears, replaced by the maleness. The truth begins to sink in... She really will be a dog soon.

Lucy simply sucks more. She is lost in pleasuring her sister and closed her eyes. So she only feels her cock reshaping. Her first doggy bone it seems and she loves the idea, what only makes her suck harder and rub that little spot at her twin's cock base, that will inflate son into a proper puppy knot. She let her out with a loud pop to speak. "Oh, this is so hot. Cum for me Jane. Fill my mouth with your puppy seed!" She opened her eyes for a moment and saw her fur spread. It is all so hot and she simply tugs her pushes her panties aside to stroke her own vulva. She doesn't bother to get undressed, no. What matters is to suck puppy bone, until it spews her mouth full and suck it more then.

Jane whimpers as she feels the changes going through her body, and Lucy between her legs. She shudders, only able to endure what the new cock is enjoying so much. But she's growing to like it quickly. The prick finishes forming, now a lovely slick and glistening cock. The tip dribbles from the attention, and the knot and balls all seem to throb with need. Jane doesn't dare move from all fours. She doesn't want to disrupt Lucy, and isn't sure what she'd do anyway. She just pants faster from the fur growing over her body. It rushes down her legs and up over her behind. As the black fur goes toward her feet, it changes from black to white. And the color changes going up over her chest to paint that white as well. She arches slightly, feeling the base of her spine push outward and begin to form a tail, black like the rest of the fur on her back. She curls her toes as they begin to feel strange, legs twitching and feeling like the light sting of needles after having them fall asleep. She gasps, finally feeling major changes begin... her bones begin to shift and her toes start to reshape. She shuts her eyes, letting tears swell in them. She's going to be Lucy's perfect lover...

The dog loving girl herself enjoys every bit, that whimpers reminds her so cute of that of a puppy in need and she can't help her but get off that now full puppy cock, not without stroking it still. "Mmm, you're so cute Jane and a good puppy." She turns under her twin. Her major changes noticed only at the border of her mind, as it was filled with so many sexy images of them both having sex as dog and girl now. She wants her to mount her, to get that red throbbing shaft in her folds. So she turn full and presents her changing twin her shapely ass with her folds already freed. "Come, mount me Ja..Jake. Bark for me like the puppy you are and mount your owner." Those thoughts are new, but seem like they where there all the time. That collar seems to influence both. Owner and pet and make it as if both where like that forever. Jane's collar tag changes too. Now it says 'Jake', the a much more fitting name for a male dog. Jane whines as the mouth pulls free of the slippery cock. It hangs almost pitifully, pulsing with the heat of desire. Jane turns to watch Lucy moving. Her breaths come in hard pants now, tongue starting to roll out of her mouth. The fur rises up her back and to her head, engulfing her ears and reshaping them to stretch upward, but curl down with a slight droop. She parts her lips to show her teeth are changing to be sharper. Lucy gets a look at her changing face, growing black and white fur across her head. Her eyes also start to change... gradually losing the hint of intelligence behind them, as the changes reach her mind as well. But as Lucy offers herself and calls her Jake... She, or rather he can't resist. Not just the current arousal, or the sight of that beautiful human body laid out which she--he still finds attractive. But the orders ring in his ears, able to understand them for now. He sits forward, so-far unchanged hands landing on Lucy's shoulders as he slides up over her, preparing do do just what she asked.

Lucy moans when those hands land on her back and she looks forward again. What she saw was hot. Her lover and twin turns into a male border collie. She absolutely adores those cute pups and moans with the delight from her acknowledge that her former twin, now rapidly becoming her dog lover, planned all so well and even picked her favorite dog breed. She wiggles her ass enticingly under him and begs lusty. "Good boy. Fuck me Jake. Make me your bitch." She wants him so desperately into her now. Her pussy clenches in anticipation and hurts with emptiness. She needs to get bred and now by the dog her sister just changes into. She even feels her humanity change more when those hands curl and start to slip from her shoulders, until she feels hard claws against her skin.

Hands land on Lucy's shoulders, and Jake nudges himself up and over her. His hips glide forward to rub the topside of the cock against her folds. It's not an intentional tease, more just Jake teetering and getting used to this change in weight and center of gravity. Lucy can no longer see him above, but he can feel the motion. The fur of inner thighs rubbing against her backside, and the sway of a now-wagging tail. Out of the corner of her eyes she can see the fingers growing shorter one by one, and fingernails changing shape. White fur rises up his arms and over the fingers as they change into puppy pads. The previous look she had at her lover's face was mostly human, starting to grow fur. Now over her shoulder she feels and sees an elongated muzzle fall, rubbing against her cheek. He's panting with mouth open wide, tongue wagging and dripping saliva onto the rug below. She feels him rubbing and adjusting until finally she gets her wish. The slick cock brushes her folds and then enters her. The sharp tip presses to spread her folds. For the first time, after countless videos and dreams of this, she's being mounted by a horny border collie.

The muzzle on her cheek only excites her even more. She watches him change more, sees those finger become claws and suddenly feels him entering her. She screams in excitement and nearly comes then and there. The feeling nearly too much for her, but as his slimy cock member pierces into her folds, Her mind seems to change again and that collar tag seems to glow now. "Please Jake. I'm your bitch.", begs the girl. "Good boy! Fuck your bitch.", moans she out. It seems she changes from the one who has control to be the one who seeks to be hold down. Jake can feel his bitch slowly submit to him and would know she is his soon, as the collar tag changes again and states on the backside 'Lucy, Jake's bitch'. Jake lifts up and pushes harder down on her. She can barely see the muzzle salivating beside her head, but she briefly sees his eyes when he gives a forward thrust. They're the last thing to change, along with his mind being emptied and simplified. Many thoughts and ideas and memories simply evaporate, his mind growing less complex by the second. No longer Jane the pretty female human, now just Jake the border collie... Lucy's pet and lover. She sees finally when his eyes resemble only those of any other dog, now just an animal. But he continues... driven on by lust. He pushes against her harder and deeper. Those words catch his ears, but he understands only two of them. 'Jake' and 'bitch.' He's left with just enough memories, knowing Lucy, and now knowing... she belongs to him. His claws press on her shoulders, and his teeth graze her neck with a light growl. He thrusts harder, claiming her as his bitch. "Rrrwrh..."

Lucy barely sees his eyes, but can see her twin is gone now. It shocks her for a moment, but only until his next thrust. The magic of Jake's collar effects her mind as well, adjusting things to make her submit to the beast that was once her loved sister, the love for her transforms into submission to him. He is her alpha now and she has to please him with her body and give him pups. The last thought makes her mind shake. 'Pups' humans and dogs cannot have such, but the craving to get knocked up by her loved dog raises and make her beg for it. "Fuck me Jake. Give your puppies. I need them.", screams the girl, when his rough fucking nearly drives her insane. The false logic of those needs quickly forgotten in her mind that struggles to keep together in plateauing pleasure.

Jake pushes into her more and more powerfully. He seems to take little care to be gentle. Though, she should have expected him to be a little rough. His tongue wags over his sharp teeth, visible next to her body as saliva is tossed and dripped. He doesn't understand hardly a word, but he does stroke harder on hearing his name, since she seems to be crying and begging it. Soon she can feel the swelling, the growing sensation of his knot filling out. His thrusts don't decrease any in strength, but he can no longer pull free of her. The knot grows thicker and harder, and she knows he's going to cum soon. His claws scrape her shoulders, and he nips at her neck possessively.

Lucy can feel a tingle in her belly now. She just things it is from the hard rutting of her mate, that seems to think he owns her. Not that she loved this feeling now, but that tingling has another reason. Her own body changes now to full fill her induced wish. Her internal organs change to accept his seed proper and give this strong and virile border collie those puppies he deserves. Her vulva changes when he knots with her, the look and position get more proper for a bitch cunt. Higher for him to have a more pleasant release and sucking his knot to make his tip stroke her cervix. She wouldn't cum from it though, only when Jake has his release, Lucy can cum and accept the hot seed, that will soon fill her belly with live.

Oblivious to any changes below him, Jake continues to push in earnest. His motions don't take him very far due to the knot, but the stimulation works all the same. She feels the furry body atop her, moving with that animalistic passion up to the climax. The knot seems to bulge even more, and soon the canine cock is bursting with white-hot seed. His motions slow to a stop, enduring the rewards of their lovemaking. The first, but not the last, climax they'd share. Jake fills her with potent seed over the course of many seconds. Each new clench of muscle and gush of fluid can be felt by his bitch below, until he's finally done, and lays his head on her shoulder.

Lucy cums with him, the moment his hot seed hit her walls, she screams out in lust for him. Her cervix opens to let his seed into her womb, where already eggs wait for his seed to be fertilized, but she is far from done now. His pre and seed seem to take effect on her body. Her belly tingle and very soon white hair sprouts there. Neither of the couple notices this changes now. Only Lucy feels her head lighten a little and an itching around her belly and new dog pussy, where fur continues to grow and covers quickly her complete abdomen.

Jake's motions slow to a total stop. He rests atop his bitch, still panting to catch his breath. The knot would take a while to wind down, so for now the two are stuck together. He begins to lick the back of her head, which of course brings the collar to touch her skin. The actual details of the collar are outlined in text that comes with it. But reading aloud the terms and conditions is hardly something one does before gifting another person their deepest desire. The magic is actually quite strong, and can leak to those near it once triggered and start to transform them as well. Truthfully Jane didn't pick up a specific collar, it merely responds to the wishes and desires of the user. If Lucy isn't careful, she may soon find herself transformed into a hybrid of human and canine... Or, if she doesn't stop it in time, be completely consumed by it and become just a dog herself.

Lucy moans tender from his affectionate licks. "Good boy. You bred your bitch well.", murrs she. Lucy doesn't know how much of Jane is still in there, if any, but she wants to make either Jane or Jake felt loved by her. Though exposed to the magic and her deep wish to be together with Jake, as well the wish to please him and do everything for him let her plan fire back. That fur creeps over her back now and becomes black. Fur to fur rubs when they both be so intimate tied and Lucy feels her head tingle as it is most exposed to the collar itself. Her tongue feels odd and soon she has to pant as it grows to big for her mouth and her mind changes again, driven from Jake's lust, the collar make her more accept to become a dog herself and want to change, want to become a border collie for her love and live with him to the rest of their live and giving him many healthy puppies, they both rise to strong border collies.

The wiggling and changing below makes Jake squirm atop Lucy. He laps across her face to show her affection, watching her grow aroused as she changes. Not that he understands it... and his bitch is his bitch all the same. Same scent, same submission, same bitch. He pants next to her ear as fur grows between them. It feels more comfortable, if anything. Another dog underneath. He nudges his cheek against hers, and soon after when she starts to pant, he begins to thrust again...

Lucy moans again when Jake starts to thrust again. She picked the right male, he has stamina and give her many puppies. 'W-wait... I was human right...', thinks Lucy, but that thought is quickly driven away when she pants from his thrusts. This feels more natural now, she WAS a human, right, but she becomes something better now. Her hips changes by the moment she accepts what she becomes and rearrange to a more fitting angle for him to thrust harder. her muzzle builds as well, when her face get covered in fur and her whole head reshapes to become more canine than human.

Still knotted with the woman below, Jake picks up speed and thrusts harder against her. The changes start to make her smaller, to fit the new form. The more her arms and legs shrink and her body adjusts, the more Jake seems to loom over her, holding power and dominance over his partner. The more the fur runs over her body and the more she changes, the more he thrusts into her and claims her. The more he begins to growl. And the tighter the knot feels as she's shaped around it. Jake bites her neck, catching the scruff of it as he fucks her so thoroughly.

Lucy feels her whole body change quickly now. She wants this, definitely wants to be his forever. She wants to speak to him, but her voice box already changed and only whimpers and barks emit from her cute muzzle. She is much more dog than human now and feels her tail bone grow, when she gets her new doggy tail that slithers to the side, out of her mating alpha, who she belongs to now. The last changes for her are like those for her former twin. When she has already a full border collie body, her minds starts to get less complex. All her memories and thoughts fade away into nothing, only submission and love what was formerly her pet girl and twin is left, when she howls out in her new form and milks her loves knotted, thrusting shaft in her contracting canine pussy.

Jake takes his lover and mate. His motions are faster and harder. It's almost as if he knows he can be rough with his little bitch. His eyes watch the fur spread, and watch hands turn into paws. Lucy feels her mind draining, which is a pleasant feeling. Near the end, she can almost feel a moment of clarity. She feels what Jane must have felt. Giving up everything, body and mind to be perfect for Lucy. Even if that meant losing everything that she is. Lucy feels that moment of love just before she loses herself and becomes just Lucy the dog -- now the perfect lover for Jake. Two canines, having both given themselves to the other. And then, just as she's changed completely, Jake climaxes a second time. His paws hold her tight. He fills her to the brim, until, even with the knot, cum overflows around the tight seal and drips to the fur rug below them.

The border collie Lucy feels him cum again for the second time on her. A true alpha that shows affection to her and she knows with her feral mind. Soon her belly doesn't bulge only from his high quantity of seed, but from those pups she bears for him. She knows as well, that these aren't the last one she will give Jake and happiness fills her simple mind, while she enjoys the afterglow of her recent climax and her mate still tying with her. All her humanity lost, except from some clothing she still remains but never fit any more and she will loose when they search for a home. Both know they cannot stay here, as only few memories remained. Those that are important for their survival. And those tell them, that here isn't enough food or water for them, so they have to run, but will remain the loving couple they always were.