I’m relentless. Even after I feel her come on me, hear her cry out in ecstasy, I don’t slow down. I lower myself over her back, still holding her down by the neck, and reach around to grab one of her tits. I mold it with my hand, grasping the nipple and pinching it as she thrashes beneath me.
Shifting the hand gripping her neck to one side, I extend my thumb far enough to press it against her lips, and she opens her mouth, sucking and biting on my thumb. Remembering her on her knees with my cock in her, I begin to lose control.
“Fuck, Riley! Fuck! I’m going to come!”
“Don’t you fucking dare!” she growls around my thumb. “I want more, and you’re going to give it to me.”
I hold my breath. My gut tightens, and I have to force the feeling down. Flashes in my head scream at me to obey her, and I tilt my head up to stare at the bare bulb on the ceiling until the sensation wanes.
I slow my pace a little, but one dark look from Riley and I move faster again.
“That’s it,” she purrs. “Give it all to me.”
“Jesus, Riley! You’re killing me!”
“Hush.”
I swallow hard and lean my forehead between her shoulder blades. I’m nearly out of breath. Despite my inclinations to do what she says, my self-restraint may not be able to comply.
The pressure inside of me is so intense, I can hardly stand it. It doesn’t matter that I came in her mouth not as much as thirty minutes ago—I still need the release.
“Please, Riley…I can’t hold out…”
“Almost…” She grunts the word. “Almost…there…”
She tightens around my shaft, pulling me inside of her.
“Oh…oh, yeah! Oh God, Riley!”
“Yes! Yes! Oh fuck, Sten! Harder!” Riley screams again and again as I rock into her as fast as I can. Her fingers dig into the sheets to the point where they just might rip under her grasp. I close my eyes and join her cries as I fill her with hot cum.
We both fall in a heap on the bed. My dick slips out of her immediately, but I can’t even push myself off of her. My arms and legs feel like they’re supporting ten-ton weights.
“What the fuck was that?” I can barely breathe.
“More data collection,” Riley says. She wiggles out from under me, leaving me flat on my stomach. She reaches over and runs her hand over my shoulders and down my back. She stops at my ass, squeezing it a little. “Now, let’s see how many more times you can go.”
This continues for hours.
I fuck her on the bed, over the top of the short dresser, and in the shower. She’s completely different—wild in her abandon and driving me wild with her dirty mouth. By the time we finish, we’re both exhausted. We lie on our backs on the bed, our fingers entwined.
Once she’s caught her breath, Riley rolls over and wraps her arm around my chest. I work my arm around her back and hug her to me.
“All better now?” I ask.
“Worn out,” Riley replies. “I’m still worried.”
“I’ll be all right,” I tell her for the hundredth time. I reach over and touch her cheek.
She closes her eyes and leans against my palm.
“This will be so different from training,” she says. “We try to anticipate every possible circumstance you may run into, but dealing with actual human beings as adversaries…it’s just not the same thing. I wanted you better prepared. I was working on some other scenarios that we haven’t had a chance to program into the virtual center. I wanted time to run you through that before you were really out on your own.”
“I won’t be on my own. Isaac and Pike will be there, and you’re always right in my ear. I won’t be alone.”
“Isaac and Pike rely on you.” Riley sighs. “If something happens to you, I don’t even know what I’ll do.”
If I don’t come back from this mission, Riley will have to begin again with a brand new specimen. She’ll probably have to fight to be able to use her alternate treatments, and Dr. McCall will be all up her ass about it.
“I promise I’ll be careful,” I tell her. “I don’t want you to have to start all over again.”
“Is that what you think this is about?” Riley scowls at me.
“Isn’t it?” I narrow my eyes, confused. “Finding the right lab rat can’t be easy.”
Riley sits straight up in the bed and turns around to face me.
“You are not a lab rat!” she yells. “Not at all!”
“I am.” I shrug and prop myself up on my elbows. “It’s all right though—as long as I’m your lab rat.”