Time for some tittyfucking

"Iris," I whispered, my hands massaging her doubly-milky breasts. "Iiiiiiiriiiiiiiis." I rubbed her nipples between my fingers and placed my face close to her own.

She started to stir, her eyes fluttering open. Uncomprehending, she stared at me.

"Hello, Iris," I said. "What you're experiencing now is an intense, undeniable urge to please my cock." Her eyes widened in shock. "Oh, and I'm Martin by the way. It's very nice to meet you."

"What-- Who?"

"Shhhh," I said. "I suggest simply giving in to your instincts. That'll make this more fun for the both of us." I chuckled at a joke I made to myself. "And by the both of us, I mean me and my cock!"

I could tell that Iris didn't appreciate my making such a lewd joke at her expense. She opened her mouth, presumably to call for help, but no sound came out.

"Your body needs to please me, Iris. It's not going to let you do anything to get in the way."

"What do you want?" she whispered huskily.

"Good girl," I said. "Just stay there for a sec."

I hopped onto her bed, straddling her chest. I placed my long, hard penis between her gigantic breasts and squeezed them against my shaft. "Oooh, that feels good, Iris," I said as I started to pump in and out. "Did your milk come in yet, hon?" I asked, leaning forward and sucking hard on one of her nipples.

"Ouch!" she said sharply, but she didn't push me off.

"Hm, not yet, I suppose. Unless..." I put my mouth on her other nipple, again sucking hard.

"OUCH!" she said more loudly.

"I told you to be quiet, Iris. I'm going to need you to listen more closely from now on." She quivered and stayed quiet. "Now, let's have a go at these tits," I said. I moved back and forth more quickly now, squeezing her breasts so hard against me, it felt like I was in a soft, tight, dry pussy.

After a few minutes of tit-fucking this beautiful stranger, I shot my load all over her neck and chest. And what a load it was! Spurt after spurt of warm, thick semen coated her pale skin.

But my cock was still rock hard. "Interesting," I said. "Looks like the doc gave me extra stamina. That's good news, Iris. We can have some more fun!"

Fear clouded her eyes as she realized what I intended to do next.