How Do I Give a Good Lapdance?

Awhile ago, I asked if I should crossdress for a frat party. I'm a guy, but the frat offered to pay my month's rent if I dressed up girly. Here are the pics: http://s403.photobucket.com/albums/pp112/lenny_wrizz/Statesman%20Bash%20Nov%2008/ The downside was that guys were drunk and kept grabbing/slapping my . I'm NOT gay, this wasn't cool. Now, three of the guys say I have to come over all dressed up and give them lap dances, or they are going to send the pics to my mom! She would flip, so I am going to do it--for sure. How should I do it??