Not a chance

After you and Christina walk in the door, Rebecca greets the two of you and offers you drinks. You both except then start making your way around. You think it's best to stay close to your best friend. You're hoping if anything goes wrong with your costume, she'll save you.

After walking around for ten minutes or so, you and Christina stop and chat with a large group of girls. All of them friends with Christina, very attractive and all dressed in trashy/revealing outfits.

This makes your penis start to wake up. Since you are a virgin, you aren't aware that your dick is tiny(only 3 inches hard) your boner is pushing against the sheet, but all of the girls right around you are too drunk or not paying enough attention to notice.

Unfortunately for you, Dana, the school bully does notice as she was walking by. She also knows you're naked under the sheet. See Dana just happened to be driving the car, Christina made you moon, by pulling the sheet up, when you walked there.

Dana always thought you were a loser. She was planning on embarrassing you at some point during the party. Now this just gives her more way's to do it.