Justine.

"No offense, but I've always wanted to fuck Justine a lot," you say, "She's been teasing me with those boobs and that ass for a long time."

"I do more than tease, honey," Justine says, "But Lexi wouldn't let us have you until she did first."

"Is that true?"

"...guilty," Lexi says, "It just meant so much to me. Am I making up for lost time now though?"

"I'd say that this qualifies," you reply, "Especially after I've had Diddy. She's super-hot too."

"We said there was no bad choice," Diddy says, "Go fuck him now."

She playfully-slaps Justine's tight ass, who looks at her and giggles. She walks over to you and grabs your rock-hard member.

"Watching me cum got you turned on, I see. Good. Take me doggy-style."

She approaches the bed and bends over in front of it, placing her hands on the mattress. She shakes her tight, but big ass at you.

"We'll keep ourselves busy," Melanie says, answering your unspoken question.

Lexi moves over to the bed and lays on her back next to Justine on the right. Diddy moves in front of her and gets on her knees. Melanie takes a position on her left after fishing a large dildo out of a nearby drawer.

You smile as wide as possible and take up a position behind Justine. You rub your cock against her slit, getting it wet with her juices. It got a little bit dry being out of a pussy for a while, so it was a good thing to do.

Once wet again, you push your way in. Justine's pussy is nice and tight, but also quite inviting. She is giving you easy access to herself and it feels incredible. You fill her up pretty quickly, allowing you to get down to the action.

Speaking of action, your step-sister is on the receiving end of a pussy licking now. Diddy is repaying the favor from earlier. Plus, she just likes doing it!

Melanie is fucking herself hard with a large dildo now. The end has a clit stimulator that adds extra fun with each thrust.

As for Justine, you are giving her a world-class pounding. She keeps begging for more and more, so you try to deliver. Some girls like it soft, slow and sensual. Justine likes it hard, fast and intense. You give her the best you have, holding onto her hips for extra leverage.

So it goes for several minutes as everyone is getting some action. Even Diddy has managed to start rubbing her own pussy with a free hand, while using the other to rub Lexi's breasts.

"Fuck. So good. Fuck! Your brother is an amazing fuck," Justine says.

"Tell me about it," Lexi says.

"Ditto," Melanie says, moaning a little.

"Don't make Diddy too jealous now," you say, "She's the only one left who hasn't gotten a turn."

"I'll make- ooh- the most of my time," Diddy says, resuming licking.

After another couple of minutes, Justine has an idea.

"Lay down in front of me, Mel," she says, "I have something fun in mind."

The girl nods and shimmies over into position, her pussy right in line with Justine's mouth.

"Grab my arms and hold me steady," she says next, "You can fuck me even harder then!"

You nod and move your arms down to her's. You pull them back and up, giving you even better access.

Without the support, her face drops a bit and goes right into Melanie's pussy...which she starts to lick.

It isn't long now until...

"Oh shit- I'm cumming," Lexi says.

"Me too. Justine knows all the right spots," Mel says, now fingering her own ass.

You hear a small, but muffled sound from Diddy and a louder one from Justine. They are cumming too.

The sights and sounds of this crazy bit of simultaneous, orgasmic bliss is almost too much for you too! She's even tighter now.

You manage to hold out until she and the others appear to finish and announce it.

"Shit! I'm going to cum soon. Where do you want this load?"