Sister Takes Charge

"Mmm I can see you're close. Are you going to cum for me?" You mumble a yes from under Megan's ass. "Ooh I bet you can't wait to release your seed for my sexy foot. Beg me to finish you." Your sister moves off of your face to allow you to talk.

"Please Heather finish me off. I want nothing more than to cum for your sexy foot." The humiliation you felt actually made the situation even hotter for you.

"Hmm I don't know that didn't sound convincing enough. I know you can try harder."

"You and Megan have utterly dominated me physically and sexually. As a sign of submission to you I would like you to finish me off like the pathetic bitch I am." Here you were looking up at your sister's ass, begging her friend to stroke your dick with her foot. You were truly their pathetic bitch.

"Well that was much better, but I don't think you deserve my foot, I think your sister's ass will do." You heard her giggle sadistically as she removed her foot and walked away to her seat, leaving you excruciatingly close to orgasm.

"What do you think bro, want to cum while being smothered by my ass?" She didn't give you a moment to contemplate what she said, nevermind answer before dropping back down to engulf your face in her butt.

"Come on big bro, submit to your little sister's butt. Admit that I am superior to you both physically and sexually." You were embarrassed to admit it, but your sister's humiliating words were bringing you closer to the edge. Even without any physical stimulation you were going to orgasm. "Cum for my ass big bro." The way your sister said that while looking back at you with a sadistic grin took you over the edge. You blew your load as you looked up at your sister's dominating form sitting on top of you.