The twins, and the cock belongs to David, her white crush.

Everything came back to Emma as she read the message that Holly had sent her. She walked back to her dorm as quickly as possible, trying not to draw any attention to herself as she walked staring at her phone, salivating over the picture.

Emma was a little shocked when she saw that the owner of this massive beast was David, her crush from Calculus class freshman year. She hadn't had a class with him since then, and she'd never had the nerve to approach the tall, good looking guy, so she'd lost touch with him. Seeing that her suspicions about his package were true was great, but she felt very jealous of Holly for having slept with him.

Another message came in. "Rose and I can set up somethin with him 4 tonight, if your interested. He's very eager to add a third girl, and I promise you he can handle the extra work!"

So it wasn't just Holly, but her sister, too? Emma got to her apartment as fast as she could, locked herself in her bedroom, and pulled off her pants. She fingered herself with one hand as she typed with the other. "Got more pics?"

Within a minute she got a message, from Rose this time. "Ha! I knew you'd want more!" She'd sent along several more pics of the glorious cock. They all had Emma salivating, but one blew her mind. In it, David was on his back, and Rose was clearly taking the picture from between his legs while holding his massive cock. Holly was crouched near his head, with as much of her large tit stuffed into his mouth as possible. Emma wanted that monster inside of her, but she was also jealous of David for getting to play with Holly's big tits.

It was Holly, right? This message was coming from Rose's phone, so it had to be, didn't it? Getting tired of always confusing the two twins, Emma grabbed the rulebook and added something.

• Old Rule: Holly always wears mostly green with maybe a little red, and Rose always wears mostly red with maybe a little green.

Emma looked back at the picture and saw that the twin who was getting her fat tit sucked had a green barrette holding her hair back. Yes, that was Holly.

Emma hastily typed a message for both the twins. "I'll meet you all at your place tonight. 9pm."

She then erased "9pm" and changed it to "7pm" before hitting "send". She could skip studying for a night.