It's Audience Participation Night - one mixed boxing and one mixed wrestling match, both with a twist. When Tim and Misato face off in the opening boxing match, the rules are simple - a knockdown allows three audience members of the opposite gender to handle the boxer still standing, ending only when a standing fighter was finished. The winner could allow further attention, their picked audience members get $500, and the losing fighter is used by their own audience members.
And in the wrestling main event, Jeff faces off against the stunning Jessica - each wrestler can call audience members from the front row into the ring to help out as long as their opponent stays down. When the match ends, the winner can take whoever they want from the audience backstage to celebrate - but the loser stays in the ring to be used by the entire opposite gender half of the crowd!
On Audience Participation Night, you can't just fight your opponent. You have to fight your own body, your own arousal, and the thousands of eyes watching to see which fighter can last the longest before they break.