After their first simultaneous orgasm, they do.

Mostly because his wanking suddenly sounds very noisy in the quieted room…

Lucy turns around, annoyed, her eyes shooting daggers at being the object of some virgin boy’s lust. She’s not a lesbian for merely having a tryst with a girl! It’s called experimenting, that’s what you’re supposed to do in college. She moves, viper-like, but she notices your brother’s actually packed. Her behavior instantly adapts to this new information.

“- Well… you wanna join?” she purrs. Sofia bends her neck, surprised. Then she notices your brother’s massive cock and she comes to a similar conclusion.

“- This might be your lucky day, baby boy. You a virgin, right?”

He’s not. Not really. Well, in this reality he is, but he’s fucked a girl in another. You.

You know what’s sad? You don’t know what’s going on. You’re too busy tracking your mother’s whereabouts to keep tabs on your brothers.