Take her brother's cock into her pussy

As Adam started slamming his cock into his sister's mouth, forcefully fucking her face, Rachel came up behind him once again.

"Having fun with your sister?", she whispered seductively in his ear.

"God, yes", he said breathlessly. "You have no idea how much I've wanted this."

"Mmmmmm", she purred, "I bet you have. It'd be a shame for it to be over so soon though, wouldn't it? When you could slip this", she said sliding her hand around the base of his saliva covered dick, "into your sister's cunt instead."

Adam stopped his pounding, and Alice looked up at him with panic-stricken eyes, as his cock rested on her tongue.

"I could...I could do that? I could...have sex with Alice? Right here?"

"Absolutely", Rachel sighed, nibbling softly on his ear. "We all can't wait to watch you do it. Personally, I'd be so excited to see you fulfill your fantasy with her." She turned Adam's head so that she was looking directly into his eyes, and leaned close enough that her lips brushed against his. "I would get so hot watching you fuck your sister.", she said leaning in to kiss him, her tongue dancing expertly in his mouth.

Though Adam's thoughts were mostly on his sister, he couldn't help but feel his cock twitch a bit in Alice's mouth as Rachel made out with him.

Alice felt a hot, burning anger in her chest as she looked up at the two of them. Even though Adam was doing sexual things to her right now, without her permission, she still loved and cared about him. She hated seeing that bitch Rachel manipulate him so completely. She was also really scared that Adam might decide that he did want to have sex with her in front of her class. If he made that decision, she doubted there was anything she could do about it. She would be **** to commit ****, and that was something that she would always have to live with.

Rachel disengaged from Adam, biting her lip. She gently turned Adam's head back in the direction of Alice.

Adam looked down at his sister. "I'm sorry sis, but this is the culmination of a deep fantasy for me. I love you, but I think I have to do this." He couldn't help but be turned on a bit at the image of his sister's hurt and betrayed expression as she looked up at him, with his dick between her lips. He gently slid his dick out of her mouth with a slurping sound, and she immediately started coughing.

"Adam, I'm your sister", she pleaded with him. "It's wrong! It'll be ****! Plus, I don't want this! I love you, but I don't want this! Don't you care about me?" Tears streamed down her face, and her voice trembled as she spoke the last part.

"I know, Alice, I know." Adam replied. "I'm sick. I get that. But I need your help. We've always been close. You've always been able to help me out with things I couldn't trust anyone else with. Maybe if I do this just this one time, I'll get it out of my system?

Devon lowered Alice to the ground as Brady came over to pin one of her arms to the ground above her head, while Devon grabbed the other arm. Adam removed the rest of his clothes as he lay down on top of his sister.

"Don't do this to me, Adam.", she whispered. "Not in front of all of these people. It's bad enough that you want to sleep with me, but everyone's going to know. I'll always be known as the girl who had sex with her brother."

Adam blushed a bit, as guilt settled into the pit of his stomach. "um...actually it's...uh kind of exciting to know that people are watching us. I...um...kind of like it that everyone's going to know."

Alice could see that there was no talking him out of it. She turned her head away, and tried to mentally prepare for her brother to penetrate her. She caught a glimpse of Chloe filming her, and started uncontrollably sobbing.

Adam sat up slightly, moving Alice's legs farther apart and scooting in so that his dick was rubbing against her pussy. He leaned forward, putting his hands on her tits, kneading them gently and rubbing her nipples in between his thumb and forefinger.

Alice felt the head of his cock start to press against her opening. She knew it would slip in pretty easily as it was still wet from her mouth. She closed her eyes, hoping all of this was a nightmare as she felt the head of his cock enter her. Not wanting to wait any longer, Adam quickly slid the full length of his cock inside his sister's pussy.

Alice couldn't believe it! It had actually happened! She was having **** sex with her brother in front of everyone!