Keep kissing

You watch as your mom and sister morph into a full on makeout session. It's the hottest thing you've ever seen and everything that's been missing in your life. Clothes seem to melt away, the few that were being worn and soon, both women are standing naked in the apartment, hands everywhere. There's another knock on the door and your sister and mother dance their way over to lean against it to make sure it can't open.

"Hey...its Ria...I brought soup for Rachel," you hear through the door.

"Mmmmmm......ohhhhhhh....." your mom moans. You can't see what's going on from all of the angles and things in the apartment, but you're pretty sure that your sister is fingering your mom while sucking on her tits loudly. "Oh that's.....so nice...." your mom cooed. "Been wanting that...for so long...." she continues.

"Well, I mean, I just told Mike that I'd be up soon," Ria says, sounding confused. "Can I come in? I'd love to see Mike for a second and drop off the soup for Rachel," she said, the optimism returning to her voice.

"Oh sweetie, my pus....hands are full. So full," your mom half-moans again. "Jesus Christ...so full," she whispers so you barely hear her, the words meant only for your sister. "But there's room for more, baby girl...always room for more in momma's sweet pussy."

Your mom jerks suddenly and thuds hard against the door and she bites her own hand to muffle her scream. It looks like Rachel is kissing down her body and you see her rising and falling slightly as if going up on her toes rhythmically. Then the realization hits you; your sister is fisting your big-titted mom. You have to struggle to not blow another load then and there.

"Well, I'll come back later when things aren't quite so....full, but if I could hand you the soup," Ria says, a little confusion back in her voice.

"Mmmm....sweetie....cum any time you want. Our door is always....oh.....oh....ohhhhhhhh-pen for you," your mom says trying to talk through her orgasm.

And then the door tries to open.