I am 16 years old. Do I snitch out my clmates?

I made a big mistake at a party with some of my junior clmates. I feel very frustrated. I lost all dignity adn want to move. Me and two guys were playing an adult board game with 5 girls from our cheerleading team at one of the girls houses. In the end, I had to get in front of the others. All 7 of them were sitting on the couch when I walked in naked. I had to stand that way for 5 minutes. Well, when I came out, they (even the guys) were mocking my half inch and then as time went on, I got an of 3.5 inches. The girls were laughing hysterically waving their pinkys at each other and to make matters worse the two other guys, pulled their trunks down and showed they were twice as big as me. I am getting ridiculed by everyone at school. Should I tell on them to my principal?