Take a chance

"OK, girl. Time to show you how an Earthman uses a hot piece of ass like you," Sandra gasps softly. but you are not sure if it is because of the crudeness of the language or the way you move behind her and press the hard bulge in your sweatpants against her ass. Letting yourself go a little deeper into this old fantasy from your high school years, you pull up the hem of the tailored tee and grind your cock into the softness of her panty covered butt. "Your sweet body got me all hard again, and I haven't blown my load since this morning."

"No ... you can't!" You're not sure if this is the prideful space-maiden still defying you, or Sandra reminding you that you can't go too far, but you know what you're doing.

"You still don't get it, you poor thing." You growl as you push her feet back together, until her thighs are touching and there is only a small triangular opening right at the top. "I get to use you, and your sexy rebel sisters, anyway I like." Perhaps relieved that you didn't remove the last bit of material protecting her sex, Sandra resumes her acting even as you pull down the sweatpants and free your erection.

"You disgusting pig!" Sandra rattles the chains binding her wrists as her ass grinds back against you. "You think you can make us submit because no man ever has ever spread our legs?"

"You've got it wrong, girl." You sigh in satisfaction as you push your cock into the tiny gap between her thighs. "This isn't part of your training; I'm just using you to relieve some stress before I call in the next young inmate." Pressing between her legs like this is not as good as real sex, but with her thighs squeezing together and how hot and wet her pussy is, it's pretty close. "Your tight pussy is going to feel so good when my fat cock rips it open." You've had this fantasy before, but until now it was always your fist wrapped around your meat as you imagined deflowering another sweet Venusian maiden. Sandra is seemingly as excited by this stupid fantasy of yours as you are, and she plays along without missing a beat.

"Ow!" She yelps, "It hurts lieutenant ... oh sweet Mother Venus, it's too big ... take it out ... please, take it out!" Stopping now is hardly an option. Even if you your cock really had **** its way through her cherry you doubt you could have slowed down; her protests however are entirely for your benefit, an added touch to make this fantasy complete. With her hands chained together she really isn't going anywhere, but a handful of hair keeps her just where you want her. You pull back on the thick curls until her back arches and her tits lift off the table.

"It will get better," you assure her even as you pick up your pace, "once I get you nice and stretched out."

"No ... you can't do this to me ... please ..." Sandra's moan is accompanied by her squeezing her legs together even tighter, and you turn up the heat.

"I can do whatever I want." Your growl sounds pretty menacing even to you. "All you rebel bitches belong to me now, and I can fuck any of you, anyway I like, anytime I feel like it."

"Yes, Stephen!" Sandra aches her back even higher, "none of those long-legged space maidens can do anything but let you use their sweet bodies for your pleasure! You can try out a different girl each time and fuck her until she breaks." This final prompt combined with the warmth and tightness between her legs is too much for you to take and with a grunt of satisfaction you let yourself go.

The jets pulsing from your balls don't coat her womb, but they do make a mess on her belly where the soft cotton tee is bunched up around her waist. Hopefully, her underwear will keep the semen from dribbling back into her. The last thing you want is to knock up Sandra on your very first date. Well, that is if you can call what happened tonight a date. It takes almost a minute before you come back to your senses enough to remember that this is Vivian's roommate who is chained to your desk.

"Oh Fuck, Vivian is going to kill me."