By having him suck cock

Lisa pondered the question. "Hmm, what would be a fitting punishment?"

"I don't think anything teaches bad girls to mind their manners as well as giving them a nice juicy cock to suck on," Sally suggested.

Beth and Lisa looked over at Chris with lust in their eyes and quickly agreed. Chris looks back at them with fear on his face, but doesn't say anything.

"Now then, where can we find a suitable volunteer?" wondered Lisa.