Use a condom
From Torg Adventure
You decide not to fight Doe on this one, and pull away slightly as you take the box from her hands. Moments later you're tearing into the tiny foil wrapper and sliding the latex sheath over your cock. Re-mounting her, you are able to slide in completely to the hilt - the mixture of your sister's arousal and the lubrication on the contraceptive allowing you to do so with ease. Content that she's now protected, Doe wraps her legs around your back and begins to rut against you with force.
…
"Oh god yes!" your sister cries out in passion, as she feels your cock saw in and out of her pussy. Looking downwards into Doe's eyes, you can tell that what may have begun as just a simple dumb attempt to fuck your own sister has led to something much more - a real love between the two of you. She tilts her head back and thrusts her chest out, here breasts swaying in time with your thrusts. You take a nipple in your mouth yet again, and suck at it greedily.
"Oh god, John - Yes… YES!" she cries out, her legs squeezing even tighter along your back. You move a hand downwards and and begin to flick and tease your clit, driving her over the edge.
"Oh FUUUUUUUUUCK!" she screams, her orgasm tearing through her body, causing her to stiffen and shake below you.
She comes down from her orgasm quickly, as you still are thrusting into her. Despite how close you were to cumming earlier, you last much longer now - something that can be blamed on that fucking condom. You could try to do something about that, or just keep going…
Choices
