Chapter 3: Unscheduled delivery

I was in the middle of my morning chores when the doorbell rang. It was unusual for anyone to visit, so I opened the front door excitedly to see who it was. A large male tiger stood on the patio: Mark, another researcher from Father's lab.

"Hi Mark! Nice to see you again! Father's already left for the lab." I leaned to one side, pressing my bare chest against the door frame.

"I know, Andy," said Mark, stepping past me into the house. "He sent me over to deliver some equipment."

"Okay then!" I remembered Mark from my time at the lab. But since Father had brought me home a few weeks ago, I'd not been back there. It didn't seem important anymore. I shut the front door.

Once inside the living room, Mark looked back at me.

"Wow Andy!" Mark exclaimed. "You have grown quite a bit since I last saw you!" He squeezed my biceps appreciatively, and gave my chest a friendly thump. "You must have put on at least 15 kilograms."

"17, actually!" I said, beaming. I flexed my pectoral muscles, and Mark seemed impressed. He walked in a quick circle around me, patting and squeezing my thighs, deltoids, and rump. I was excited that he seemed to like how I was progressing. "Father has me work out every day."

"Does he now," said Mark, seemingly more to himself than to me. After another moment of checking out my stocky, mostly-naked body, Mark returned to the truck and returned with a couple of unlabeled black crates. He showed himself out to the garage, and I followed after him.

"I could help you with the rest," I suggested, gesturing back at the van outside.

"Oh no, Andy, I can get them. You should stay inside the house." Mark paused and gave me a funny look. "But that's very nice of you to offer. Very thoughtful," Mark said, again more to himself than to me. He carried a few more loads of the crates in from his van, then returned a final time.

"Well I think that's everything. I'm curious, though..." Mark picked up Father's tablet and tapped on a few different charts. Strange that I hadn't noticed the tablet there before now. It must have been on the kitchen table all morning. I'd walked past it a dozen times without noticing it. Huh.

Mark seemed absorbed in the charts and tables the tablet was displaying. A smile was slowly spreading across his face as he read the readouts.

"So Andy, your weight lifting workouts. You like the, uh," Mark chuckled, "the special treat you get for reaching your, uh, goals?"

My eyes dropped to the floor. Somehow I didn't think anyone should know about how Father rewarded me. But Mark seemed to have guessed anyway. Or maybe he knew somehow.

"Yes," I said in a small voice. "Yes I like it a lot. Father is very good to me."

"I want to see what that's like, Andy," said Mark, smirking. "Can you show me?"

"Oh I don't think I'm supposed to," I said quietly, still looking at the floor. "It's private... isn't it?"

Mark looked down at the tablet and tapped a few buttons.

"You can show me, Andy. It's okay." Mark took my wrist, leading me a bit gruffly through to the bedroom. I didn't really want to go in there with him, but to my surprise, I went anyway. My legs seemed to have minds of their own. I wanted to pull my arm away from Mark, but I just didn't quite know how to do it. It was like the feeling of being tongue-tied, except it was my arms and legs. Huh.

I followed him into the bedroom, and found myself standing by the bed. With a quick motion, Mark reached a paw into my workout shorts and pulled them straight down off of me. I was naked now. My cock peeked out of my sheath just a bit. With another quick motion, Mark planted a paw on my chest and shoved me backwards. I flopped onto the bed, face up, and lay there. I wanted to catch myself, wanted to get back up again. But I didn't do those things. Instead I just lay there with my legs dangling off the edge of the bed.

"Mark, I feel strange," I whimpered. "I don't know why I can't move."

"Ssssshhhh, Andy," said Mark soothingly as he spread my thighs apart and stepped between them. "Don't worry about anything." Mark stripped off his loose shirt and pants, and soon was also naked. His body was not as handsome as Father's; he had less muscle, less bulk, more scrawny. His cock wasn't as big as Father's either, I noticed as I watched it stiffen. He stepped in close, his swollen dick wavering above me.

"Now, let's get you ready," Mark said, picking up the tablet again. He tapped a few buttons and suddenly I felt myself getting slick like when I am excited, except this time I was not excited. I didn't feel anything for Mark. Nothing but the strange uncertainty of being unable to get up from the bed. I wasn't panicked or frightened or anything, just... it was strange.

Mark dropped the tablet and lifted both my legs up high, almost to his shoulders. My sensitive hole was now level with his cock, and he thrust his hips forward to shove it roughly into me. I felt a small jolt of pain from being abruptly penetrated, but my slickness made it easy for Mark to spread my pucker open wide with his shaft. He moaned appreciatively.

"Mark, it kinda hurts a little," I whimpered. "Is it supposed to hurt?"

"Sssshhh, Andy," Mark said again, pressing his cock still further into me. "It's okay, just relax. You don't need to say anything else now."

I tried to reply, but somehow my voice seemed to fail me. I did try to relax, tried to do as I was told. I stared straight up at the ceiling as I felt Mark continue to slide into me. Soon his balls smacked my rump, and I knew that he had buried his dick all the way inside my ass.

After that he began quickly thrusting. In and out, over and over. I lay there with a sense of detachment, feeling myself getting fucked by this lab technician. Mark didn't go slowly, not even at first. He wasn't gentle at all. He started pounding me, hard. Not as hard as Father does, but pretty hard. With Father I am always filled with amazing feelings, but this time I didn't feel anything really, other than some chafing. With a pang of surprise I realized that nobody besides Father had ever fucked me before now. Somehow I had never thought about that. Huh.

Mark's breathing began to get louder, and like Father, I could tell he was probably getting close to being finished. He kept on thrusting, pounding my ass so relentlessly that I wished I could stop him. All I would have to do is put my paw out, or get up off the bed, or move a little to the side. Anything, really. But I didn't. I continued to lay there, my ankles held high over Mark's head as he fucked me.

With a roar, Mark gave a final thrust and then blew a load of cum deep inside me. I felt his cock swell, felt the warmth of his seed filling me. But this time there was no spreading wave, no ecstatic pleasure at being suffused with spunk. Mark kept cumming, his thrusts weakening a little bit as he finished up. With a sigh he flopped on top of me, exhausted. My legs spread open further as his weight pressed me down. His cum dribbled out of my ruined ass.

After a few minutes, Mark got up, put his clothes on, and left without a word. I lay on the bed for a while, and eventually it occurred to me that I should probably get cleaned up. For some reason that made sense to me, and suddenly I was able to get up and move however I wanted. Huh.

I awoke when Father came home, a little later than usual. I had finished my chores and weights for the day, even though I had stopped for Mark's visit. I couldn't quite remember when I had fallen asleep or what order things had happened in, but it didn't really matter. Father asked me the usual questions, and then we ate the usual dinner. Father ate quietly as he flipped through screens on his tablet.

At one particular set of readouts, he paused and looked up at me. "Andy, did you do anything... unusual today?"

I stopped eating, but didn't look up from my plate. "What do you mean?"

Father raised an eyebrow. "I think you know."

"Well..." I stammered. "Mark was here. To deliver some boxes."

"Yes," said Father, "I sent him over. We talked about you when he got back to the lab. He said he was impressed with your progress."

I didn't say anything.

"Did he fuck you, Andy?"

I looked up, shocked. Father's face was stern, but his tone was matter-of-fact. He didn't seem upset, or even particularly surprised. How could he know? How would Father guess something like that? My cheeks burned with shame at the idea of Father knowing I'd been taken by someone else. I wanted to be his, only his. But I had betrayed him.

"Yeah he did. I didn't want to, but..." how was I going to explain this? I closed my eyes, tears welling up. "I didn't stop him, I guess. I'm so sorry! I didn't know how to stop him..."

Father got up from the table and stood by my chair. His big paws cradled my head as I whimpered and sagged against him. He patted me gently. "It's okay, Andy, it's not your fault. Mark should have known you were paired to me. That wasn't very nice of him to do that to you." Father's voice became more firm. "No, not very nice of him."

He held me like that for a few minutes. When my tears had dried, he sat back down at the table. He was smiling a little, which I thought was strange.

"But don't worry about it. I know what to do," said Father. "I need to make some software changes, please finish eating while I work. After dinner, let's talk about what you'll do if Mark comes over again." He smirked to himself. "I think I know what he really wants."

Please continue to Chapter 4 to find out what happens with Mark and Andy...