To make you cum inside yourselves

You start to try and struggle at your restraints, but they are far too tight to do anything, and even then with the pleasure your feeling as your new cock is continually massaged by the machine. You worry what Harriet has planned with her talk of **** especially when it involves cum. Harriet continue to smile as she kneels down between you legs and ducks under the chair. You hear her rummaging around in the same draw the device currently sending wave after wave of incredibly pleasure as it rubs up and down your rock hard cock.

"Ah got it, now lets just get this set up for Tanya too." Harriet says as she crawls away from you on her hands a and knees and over to Tanya's chair and rummages around underneath her, you see the tube attached to Tanya's machine leads into the same draw.

"I have no idea what she's planning Ellie but I hope it involves cum." Tanya giggles as she bites her bottom lip as she groans loudly.

"Well you might be in luck Tanya. Harriet giggles as she stands up and walks over to her desk and presses a few buttons, suddenly some screen descend from the ceiling, and you can see Tanya and yourself on them, as the machines milk you rock hard cocks, you feel the pressure grown and your balls twitch in anticipation of the release. Harriet presses a button and you see a dildo slowly emerge from the draw beneath your legs, it raises up and rubs up and down your pussies, when it fully extends out of the draw you notice that the tube from, your machine in connected up to the dildo.

"Oh shit you can't really be serious, you want us to cum inside ourselves? Is that even safe?" You say in horror as you feel the Dildo slowly press harder and harder into your soaking folds.

"No idea, this is the first time I've even tried anything like this, I'm not even sure if you'll be making viable sperm yet, I mean it's possible but it'd be nowhere near as many as you'd be making in a day or two, but hey there only needs to be one or two that make it, maybe you'll get lucky, whatever your definition of lucky is." Harriet giggles, as she sits in her chair and begins to masturbate, her fingers begin to slide into her pussy, cum begins to drip out as she buries her fingers into her soaking folds.

"Mmmmm so we could end up pregnant with our own babies, how crazy." Tanya says as she starts to moan and groan as the dildo slowly penetrates her pussy. "Mmmmm doesn't feel as good as the other device but any chance I can get one of these Harriet." Tanya giggles seductively between moans.

"Of course Tanya, I'm not mad at you or Ellie, I'd just thought it'd be hot to **** you to inseminate yourselves." Harriet giggles as she continues to rub her clit and finger fuck her cum filled pussy. You feel yourself relax slightly knowing the risk of impregnating yourself wasn't as bad as it could be, and also to hear that Harriet bears no ill will for you basically guaranteeing her impregnation. You feel your balls begin to twitch again, as you feel the pressure inside you continue to build and your precum is steadily leaking, the dildo is pounding away at your pussy now, you moan and groan as your juices leak. You see that your precum is sucked up and half a second later you feel it spray into your depths the heat sends you wild and your feel your balls twitch more as they begins to prepare to unload.

"ooooh looks like you're both getting really close, I can wait to see you cum inside yourselves." Harriet giggles as she speeds up her own masturbation.

You try your best to hold out as best as you can, but the simulated blowjob of the machine proves too much, as you thrash in your restraints as the dildo drill your pussy nice and deeply. You feel you cock harden and your balls rise up, you feel you cock begin to twitch continually as it continues to drip precum, which is then sprayed into your pussy, which in turn makes your cock twitch more, it's an endless cycle of shooting precum into your pussy, which creates even more precum, and drives you closer and closer to cumming into your own pussy. You really don't want to do it, as amazing as you'll know it'll feel, you don't want to risk it, you want Tanya to be the one to knock you up, and now that she has the means, you don't want it any other way. Unfortunately your cock has other ideas, as the damn finally breaks as your cock hardens, and swells as you try desperately to pull your cock free of the device.

Your efforts are in vein however as your feel a heat seep up the length of your cock, a bead of pearly white cum sits at the tip of your cock, and you let out a loud cry just as your erupt, the pressure inside yourself releases, and with it the cum erupts from your new cock, a wave of ecstasy rushes in your mind as you moan and groan as ejaculate heavily in the machine. Your cum rushes down the tube as is sucked through the pressurized tube and flung deep into your pussy, the heat from your cum sets of your pussy's orgasms and you moan and groan as flood your own pussy with your cum. You mind goes blank in pleasure, you don't even hear Tanya orgasms as she also erupts cum deep into her own pussy. Nor do you notice as Harriet climaxes from her own fingers and the sexy display, jetting forth a big squirt which also propels more cum from her depths across the floor. You have a very intense orgasm as both your sexual organs climax together, and spur on each other by flooding your brain with more pleasure. When you finally come down, you feel the dildo flop free, and look up slowly to see a stream of your own cum drip from your red swollen pussy lips, you really hope you haven't impregnated yourself, as you still want Tanya to have that honor, but you slowly find the idea of impregnating yourself grow on you, although that might just be the endorphin thinking for you.