Lie about it.

"OK OK... sheesh," you say. "I just really like boobs. So I have this hobby..."

Sadie tightens her grip on your arm. "Go on..."

"...so I write down girl's sizes. You know, trying to guess how big they are."

"Really?"

"Really."

She lets you go and opens the notebook. The contents are hard to argue with. Sadie sighs. "That's... stupid. If you like boobs so damn much, why your waste time with me?"

You look up at her, rubbing your sore arm. "I like all sizes. I mean, why discriminate, right?"

She tosses the notebook down at you. "Fine. I guess I over-reacted a bit."

You snatch up the notebook close to your body and sigh. That was a close one.

"There are worse things I guess. I guess you must be pretty pissed at me huh?" Sadie glances away. There's real regret behind her gaze. "I just judged you for your hobby... pretty bitchy."

You stand slowly. "N-no it's cool. It is a bit strange. If you still want to relax in the room, we can. I'm not big on the hustle and bustle of the party."

Sadie looks you over in silence. "I think I'd like that. Thanks Jamie. I probably killed the mood, huh?"

You laugh. "Hey, nothing a good chat can't fix. I think he's got a Playstation hooked up. The room is this way."

Your heart is pounding through your chest. You feel like you've gotten away with veritable ****. Now that the notebook is in your hands again you might be able to try something else. When you put your hand on the door to open it:"

"Lucky guess by the way," she says. "I stuff my bra. It's pretty annoying being this flat so..."

"Haha... yeah. You fooled me at first." The crossed out sizes makes the lie flow like clockwork. You push into the room, finding it clean and tidy. A large bed sits in the center of the room, practically calling to you.

Sadie walks past you and sits on the bed, stooping over in front of a small pile of Playstation games.

Seems like one hell of an opportunity.