Inside! Breed your sister!

You grab her hips hard enough to bruise and shove your cock as deep as you can, your cockhead kissing her cervix. You come with a loud grunt as you pour your spunk directly into her womb. Oh fuck, so good, so fucking good. You feel so powerful, breeding your little bitch of a sister like this. You decide you're gonna make your bratty sister pregnant with a brat of her own. She sobs loudly as you pour your seed inside of her, her pussy convulsing as she comes despite herself. You finally stop coming, grinning at her. "Oops! I came inside."

She's sobbing, her bratty protests gone, and you're proud of yourself. You certainly taught her a lesson, the little bitch. "Still think I'm gay?" You ask, grinding your cock against her deepest part. "Nn-huuHh-nooo! I'm s-sorry! Please st-stoohhhp!" You smile and pull out, wiping your cock on her sheets. "You can't tell anyone about this," you order her, confident in your new powers. "You can move again." She instantly curls into a fetal position, covering her abused cunt with her little hands. The sight of her broken like this should disturb you as her brother, but all it does is turn you on. Absolute power, right? You smile evily as you have another thought. You should make your sister your own little toy in a better way...