Fuck your sister.

You decide to test how much your sister can really ignore. "Stay put," you tell your mom and dad. They're not really listening. Your mom is blissed out, frantically frigging her clit as she rides out another massive orgasm, and your dad is weeping as he watches. You pull out, leaving your mom touching herself, and go to your sister. You move her so she's also bent over the table, but still able to eat. She doesn't even blink as you do this, and your cock twitches. You pull up her tiny tight skirt and pull down her tights and black thong. Her pussy is shaved, and plump, but dry. "You're wet, Melissa," you tell her, and instantly her pussy is soaking wet, her lips slightly open from arousal. You immediately take her, plunging your come covered cock deep inside. She makes a small noise, but otherwise doesn't react. You start to pound her hard, and laugh as you watch her try to keep eating while being roughly rammed from behind. You look down, intending to watch your monster cock spread your sister's slutty cunt open, and are surprised to see blood. Looks like sis was a virgin! Oops! You decide that makes this hotter.

Your mom is now watching you fuck your sister, and she continues playing with her clit, mind consumed by lust. "That's right, baby, that's right, fuck her, fuck her like you do Mommy, breed her like you do mommy..." You groan at your mother's words, slamming harder into your sister's once-virgin pussy. Your dad is watching, too, tears streaming down his face. "No, no, stop it, stop-" You roar as you pump your next load into your sister's pussy, your cockhead kissing her cervix as you dump your load directly into her womb. You're definitely into breeding, you decide.

You notice Melissa's pussy squeezing you and you realize she just came without realizing it. You groan and keep fucking her. You dump two more loads in before you're satisfied, re-dressing her and sitting her back down. She sits and finishes eating, staring blankly once she's done.