Mess with them

Silvanus thought back to something Blake had said earlier when she was first called up onto the stage, and had an idea.

"Sleep for Silvanus" he said, as both women went into a trance.

"Now stand"

Both stood upright, waiting for commands.

"Good. Now Yang, earlier your lovely girlfriend here warned me that people only see you as a a pair of tits. When I snap, you will begin doing jumping jacks and repeating 'I am just a pair of tits, watch me bounce them just like this'"

He then looked to Blake

"You, meanwhile, will wake as your normal self, but you will be unable to touch me, Yang, or leave the stage" he said.