The O.C. - Season 2, Episode 18: Soundtracks

Ryan and Marissa waking up in the middle of the night and running into each other in the kitchen.

In the student lounge, Ryan & Seth talk about Marissa moving in with the Cohen's as Seth animatedly acts out scenarios he envisions for the two of them. Further down the hallway Seth runs into Zach & they talk about donating their comics to the auction.

In Marissa's room, Summer teases Marissa about moving into the Cohen's temporarily while they hang out before school.

Ryan walks to the pool house in hopes of finding his brother, but rather walks into a shirtless Marissa. Seth almost interrupts but has a little chat with Ryan afterwards.

Ryan & Seth set off to return what Trey has stolen as Marissa & Summer jump up to "assist" Sandy with the auction to stall for time. Later as Summer & Marissa are still stalling, Ryan & Seth steal back the egg from the thugs Trey sold it to & race back to the charity auction house just in time.

Trey gets roped into helping out at the "Newpsie" auction with Sandy & while moving the auction wares he comes across the glass Faberge egg from "Risky Business". The song plays at the very end of the episode as Ryan & Marissa's moment gets interrupted by a phone call & she ends up leaving.