You find yourself genuinely moved, even as your body reacts enthusiastically to your sister's demands. You always loved her, and now she seems to think you're a great lover as well as a loving brother.
"You want my sperm, big sister! I'm going to to do it. You're gonna have my baby, and maybe more than one. I don't need those other girls when I've got your beautiful body and hot, tight cunt to keep me at home all night!"
You shoot jet after jet of hot jizz into your beautiful big sister, pounding her over and over with your eager groin and groaning eagerly into her hot, yielding mouth as she sucks your tongue the way her greedy cunt is sucking out your babyjuice. |