A poetry contest!

"I declare that there shall be a poetry contest!" you say, making a dramatic gesture to the audience that lets them enjoy a big bounce of your ebony boobs. "Contestants shall be judged on style, presentation, and how much their piece glorifies Panty Raider!"

"Are you kidding?" says Ashe, not letting up her struggle to liberate her hair from Raider's grip. "I'm not writing a poem about how great Raider is!"

"Really?" you say. "Not even if it meant being able to fill a rudimentary bra?"

"Um..."

"How 'bout this: The two losers get hit with a permanent-nudity spell that only breaks after they have sex."

The Itty-Bitty Titty Committee exchanges glances. They clearly don't relish the thought of having to try to convince someone to have sex with them when the alternative is letting them remain naked. Also, the fact that everyone would know about it once they start wearing clothes again is pretty embarrassing.

"You have one hour to write your poem," you say. "You will then be presenting it live to this lovely audience. Be sure to project, and touch upon how much you admire Raider for how he strips silly, scatterbrained girls like yourselves."