Family Ties/Mount Heather and fuck her into the bed
The sight of your sister's butt in the air is too tempting to resist, making you pull out of your mother's pussy. She makes a disappointed sound as you went over to Heather.
Grabbing her hips like handles, you pushed your dick into her cunt making her moan loudly into the bed. Soon you start pounding her into it, shaking the bed even more than when you were doing your mother. Heather moans and pants, drooling onto the covers while pushing herself back against you to feel more of your dick inside her.
Her pussy tightens and she cums, causing you to do so as well. Still your dick was hard and you kept ramming it into your sister's pussy like a rabbit fucking their mate.
You feel something soft press up against your back and felt your mother's hand turn your head to the side, looking at you with lustful eyes.
"Don't leave me out of this," She whispers and kisses you, tonguing wrestling with your own. One hand left Heather's hips and travel to your mother's pussy, fingering it. She moans in your mouth and kisses you with even more passion than before.
This is great, You thought to yourself. Your dick fucking your sexy sister's pussy while making out with your hot mother, both of them willing to do whatever you pleased. This truly was great.
Hours Later
You grunt and moan as you released your latest load in between your mother's chest, getting a weak moan from her. On the bed was both your sister and mother,white cum covering their bodies. The three of you did indeed fuck for hours but it seems that the pleasure was simply too much for the two of them and they lost consciousness about three hours ago.
Thankfully the endless energy that kids your age has kept you going and you knew that they wouldn't mind you playing with their bodies. So you kept fucking them for the next three hours, them still moaning and gasping with pleasure as they came over and over again.
A knock on the door and in came was your father. He showed no surprise at the sight of his wife and daughter unconscious and covered with cum or his son moving to fuck said daughter's pussy.
"So we're here at our usual family spot," He said. "Unless you want stay in here and fuck these two? Fair warning though, Jacob might be waking up soon and there are people around that might hear your fun." He closed the door.
You nod and placed Heather's long legs on your shoulders to get into a better position to fuck her. As you fuck your sister's pussy again, you decide to keep going or to wake the two up to avoid Jake finding out about this.