Millie gets fucked in the ass

As Lisa screamed out her orgasm, Millie felt something pressing against her sphincter, then a burning sensation as Lisa's boyfriend's unlubed cock pushed into her ass hole. The pain was so intense that Millie saw stars and she screamed out in agony, but her screams were muffled by Lisa pushing her face down into the mattress. The burning sensation then raced into Millie as the cock was pushed into her relentlessly, then, when it had entered her fully, it pulled out quickly and slammed back into her, then started a rapid in and out movement.

Millie's eyes teared up from the pain of the rough penetration. Lisa's boyfriend clearly did not know how to do anal sex as he was trying to fuck her ass the way he would fuck a pussy. She tried to wiggle away, adjusting the angle of her body so that the cock would not penetrate her so deep, but Lisa and her boyfriend held her in place. She heard Lisa talk over her back:

"How does it feel to fuck her ass babe?"

"It's so tight." Lisa's nerdy boyfriend mumbled in reply, continuing to pound into Millie's ass. Then, to her horror, Millie felt Lisa's boyfriend climb up so instead of kneeling behind her he was on his feet, meaning he would be slamming his cock into her from a really painful angle. Millie braced herself for what she knew was coming, but when he started sliding in and out of her ass the pain still came as a surprise to her.

"Fuck her ass babe!" Millie heard Lisa shout. Her nerdy boyfriend groaning in reply and increasing the **** he was using to push into her. Millie clenched her teeth in pain, doing her best not to scream out loud. Then, suddenly, she felt herself being pulled backwards, landing on top of Lisa's boyfriend in the reverse anal cowgirl position.

"Yes! Use your ass to ride his dick!" Lisa screamed while looking at Millie triumphantly, obviously happy that it was not her sitting there, her ass impaled by a cock. Millie started to slowly grind her ass back and forth on the cock. Her ass was well stretched out now, and since she also controlled the pace of penetration in this position it no longer hurt. She looked at Lisa and smiled, showing her that she was in control, saying:

"You are lucky, he has a pretty nice cock."

Lisa looked at her for a few seconds, like she was thinking, then reached into her bedside table drawer and pulled something out, which she held in front of Millie:

A strap-on.