It's Phoebe!

Joey sees a blonde laying next to the bed, and when she turns around she sees it is Phoebe. She must have been drinking with Rachel earlier.

"What are you guys up to?" She says sleepily.

"Phoebe, I was just sleeping here, and when I woke up Joey was on top of me." Rachel says.

Phoebe sits up, and looks at Rachel's naked butt, and then suddenly she looks completely awake.

"Allright, anal sex!" She shouts out, and claps her hands.

"So you finally decided to take it up the butt Rachel?" Phoebe says smiling, stroking Rachel's hair.

"No, I woke up and Joey was doing this to me. Push him off me, he refuses to stop."

"Rach, this is a dream." Joey says.

"And Phoebe, you are dreaming too." He continues, looking at Phoebe.

"You bet I am!" Phoebe exclaims.

"Do you want me to hold her down for you Joey?" Phoebe asks.

"Yes, it looks like she is starting to squirm a bit." Joey replies.

"Don't you dare Phoebe." Rachel says, frowning.

"Shut up you little slut." Phoebe says, straddling Rachel's head, and putting her knees on her shoulders so that she is pinned down completely. She is facing Joey, so she smiles at him and says.

"Keep going Joey. She will learn to enjoy it."

"Thanks Phoebs." Joey says, returning the smile.

"Guys, last warning, this isn't funny." Rachel says, a bit worried now.

"Shut up and take it Rachel. You are such a little slut that if you haven't gotten butt fucked until now it is about time." Phoebe says, giving Joey a wink.

"Aaoohh!" Rachel screams out as Joey pushes in.

"You are to tense Rachel." Phoebe says. "You need to relax."

Joey pulls himself out almost all the way again, but right when he is about to push back in Rachel contracts her ring muscle and pushes Joey out of her ass.

Joey tries to push back in, but Rachel is holding her ring muscle tight. She is fully awake now, and has no intention of getting butt fucked any more.

"I'll give you a hand Joey." Phoebe says.

Phoebe pulls Rachel's butt cheeks apart, and when she can see the rosebud she spits on it. She then pushes one of her fingers into Rachel's asshole, and rubs it around to get Rachel lubricated.

"Try again now." Phoebe says and smiles at Joey.

"You're the best Phoebs." Joey says and smiles.

Joey points his dick towards Rachel's asshole, and starts applying pressure. Rachel is holding her ring muscle tight all she can, but it is difficult with Phoebe holding her butt cheeks open.

"Aaaaaaahhhh!" Rachel cries out when Joey finally manages to get his knob through her ring muscle. Joey then pushes the rest of his dick into Rachel's ass, and he is now all the way in. He pulls out a little, then pushes back in. Each one of his movements is met by a loud "aaoohh!" from Rachel.

"I heard it is better to do a girl up the butt if she is unwilling." Phoebe says.

"Yes, this is amazing. Her tight squeezing is making this feel great." Joey replies.