You'll stick with it, and hope for the best

You're a bit nervous about possibly getting pregnant from playing along with Vipers kink, but at the same time, it was hard to argue with her when she was lying on top of you kissing your body, especially when you were already horny and looking forward to this since Viper mentioned it. So you decided to go along with it and hope you can work something out, as you'd rather not leave it to chance, so you plan just to try and go along with it. Although you find your plan has a bit of a catch as you find it hard not to get nervous when Viper moves your arms up and pins you down while she ties your hands to the top of her bunk.

"Mmmm there we go, don't want you getting cold feet now." Viper says with a giggle as she sits back straddling you, as she runs a finger down your slim body. "Mmmmm well I'll just get what I need, don't go anywhere." Viper continues as she climbs off the bunk and begins to slowly strip off for you, swaying in time to some unheard beat as she slowly peeled off her crew jumpsuit revealing a matching set of red lacy bra and panties before she turned her back to you and bent forward showing off a very nice view of her ass as Viper begins to fumble with something. "There we go." Viper says as you see her step into something and pull it up, you'd slept with enough women to recognize a strapon, and sure enough, when Viper turns around she's got a large dildo bobbing dangerously above her lacy panties, it's a fairly realistic looking one although it has a chunky base with some balls below.

"Well, that's a fancy looking one." You say with a smile as you on watch as Viper attach something to her head, what looked like a small chip kept on with an adhesive strip.

"Thanks, it's got a few nice upgrades." Viper says as she slowly saunters towards you. "such as this little patch here synchs up with the sensors in my friend here...." Viper continues tapping the patch on her head and then the cock, which shimmers to her touch as a series of tiny green lines illuminate and then as quickly fade away. "which allows me to feel everything a guy would get to feel." Viper says with a grin as she runs her hand over the cock and smiles. "Then there's these fella's here, which when we load up with a couple of these....." Viper says as she takes out a couple of pale looking crystals and slips them into a slot on each ball "and now we're good and ready for me to fuck a nice batch of cum into that unprotected pussy of yours." Viper finishes with a wicked grin on her face as climbs back onto the bunk and slowly crawls between your legs.

"What were those weird things you just put in those balls, and how much do you spend on this stuff." You ask as you try and crawl further up the bed, only to have Viper grab them and position her cock between your legs, you let out a whimper as you feel the warm head brush against your wet lips.

"Just some special sperm crystals, they'll get thawed out and be fighting fit by the time I cum in you." Viper says with a smile "I like to masturbate with them and leave them to thaw inside myself, unfortunately, they're not as reliable as other methods we'll be using later, but it'll feel as real, and it still might do the job." Viper continues as she teases you with her faux cock by sliding it over your soaking slit, you red swollen labia betraying how horny you are, despite the anxiety you feel about the possible consequences of this encounter, Viper letting out moans of pleasure as the sensations of what the cock would feel and recreated in her mind. "As for how much I spend, well we get paid well, and well I don't have any close family that needs supporting or anything else to save up for, so I pretty much spend it all on this and saving up for if and when I go too far." Viper says with a big grin as she grips her strap on and repeatedly taps the cock on your swollen clit.

"That's pretty crazy how have you managed to not get pregnant yet." You ask as you let out a small whimper as you feel the cock rest at the entrance of your pussy, and you feel the artificial cock begin to press into your folds, and can't help but notice how close to the real thing this feels like.

"Well, I've been on protection recently, which was why I had to **** myself earlier." Viper says with a satisfied groan as the cock parts your soft wet lips and slowly begin to probe into your soft warm innards, causing you to let out a loud moan of pleasure. "Ooooohhhh fuck this is even better than when I used it on myself with the sensors." Viper says as she hisses with pleasure as your soft warm wet walls are parted by the faux cock, as it's ridges and bumps rub against your sensitive spots causing you both to moan.

"Fuck that's a good toy, and it's crazy that you can feel wat's it's like as a guy without getting a genemod." You say as you feel your toes curl with pleasure as Viper bottoms out inside of you, as she lets out a satisfied groan.

"Yeah it's incredible, and it's pretty intense when you masturbate with it and get to feel the pleasure of both at once." Viper says as she pulls her strap on back out of you and then slides it back in, causing you both to moan and groan, and you feel the false balls slap on your ass and you can feel them, as the vibrate and warm doing whatever they were to the crystals inside them getting them ready to drop a load deep into you defenceless pussy, as your nerves are slowly drowned out by pleasure.

You lie on your back with your hands still bound with Viper's near naked body above you as she fucks you with her strap on, groaning in pleasure from the signals sent from the device to the patch on her head. You moan and groan as you feel the familiar fiery sensation building inside of you, as Viper caresses and squeezes your perky boobs as she plows you.

Many pleasurable minutes go by as Viper milks your body for moans and groans, as you feel that fiery sensation within you building as you pant and moan in pleasure, and then you hear a light beep and a big grin appears on her face.

"Well that means my cum is ready when I am, but I'm going to make you cum with me." Viper says as she begins to pick up the pace more as your toes begin to clench, as you gasp and moan in pleasure as Viper stares down at you, her amber eyes staring down into your blue ones, a slight menacing glee to them. "Oh you're already close aren't you?" Viper says with a grin on her face, and you nod meekly in response. "You're not trying to hold out in the hopes I don't flood that pussy with cum are you?" Viper continues as you let out a particularly loud groan of pleasure. "It's ok to be afraid, but don't think about that potent cum, just think of the pleasure you'll feel, the warm hot rush heightening that orgasm." Viper continues as you feel that hot pressure within reaching breaking point, as Viper continues to grin at you as she slowly pulls her cock back until it was about to slip free of your soaking pussys grip, and keeps it there for a few long drawn out seconds as you feel your body tremble in anticipation, before finally slamming the full length as deep as she could pushing you over that edge into climax.

You feel the strap on slide into your warm velvety depths, your soaking folds offer little to no resistance to the cock as Viper hilts it into you her balls slamming into your soft ass, as you let out a loud groan at the same time Viper does, as your warm velevety walls clamp down on the dildo cock, as you feel it begin to twitch inside of you as it seems to swell as the balls vibrate and shake against your ass. Moments later you feel a white hot heat splash and spill deep within you and you howl in delight as Vipers also groaning in pleasure as her strap on empties the contents of those sperm crystals inside of you, flooding your pussy with void knows who's sperm as you pussy unwitting drinks it up into your womb, uncaring of your wishes of not wanting to get pregnant, however that part of your brain is drowned out by the intense wave of pleasure rippling through your body as your body shakes and quivers in Vipers strong grasp as she holds herself as deep as she can inside of you, ensuring ever last drop of the sperm crystal is emptied into your defencless pussy, before she finally is overwhelmed by the pleasure and collapses ontop of you, as you both pant and moan as your climaxes begin to peter out.

You're not sure how much time has passed when you finally recover enough energy to do something over than pant and cosy up against Viper who had thankfully rolled herself off you and was lying next to you stroking your arm in a comforting manner. Your brain begins processing senses again, as you begin to smell your own juices thick in the air as they begin to overpower the nice flowery smell Vipers room had before you began. You roll on your side and adjust yourself into a more comfortable position facing Viper as you realize your arms had at some point been freed.

"I told you it was an intense orgasm." Viper says as she continues to stroke your arm.

You hated to agree but there was no denying the facts, you were having an orgasm from Viper just fucking you, but as you felt that warm rush and Vipers strap on pulsating inside of you, it was if it triggered a second even larger orgasm, as even now your body still shook with the occasional aftershock.

"It was pretty amazing, but did you really have to cum so deep in me?" You say sounding slightly nervous as your brain functions began to resume normal functions, and with it the anxiety you felt came back.

"Of course, that's half the pleasure is the thrill of the risk, besides it's not massively potent stuff." Viper says with a warm smile as she strokes your arm. "No that stuff comes later, but we'll be playing to see which of us ends up taking it inside of them." Viper continues as you continue to lie in each other arms for a few minutes.