On the convention floor

Someone of Karen's fame would usually consider themselves too good to walk around the convention floor with the fans but with a little coaxing from John's powers, she decided to meet some fans. He spotted her, standing in a white t-shirt and jeans, posing for a photo with some sweaty nerds. John approached them. As the photo was being taken John used his power to make one of the nerds slap her ass.

"Oh gosh!" She said, the photographer capturing her shocked look. "That was a little forward." She said to the nerd, angry but trying to be polite.

"I'm sorry, I don't know what-" He tried to apologize but John made him put both hands on Karen's tits and squeeze.

Karen slapped the nerd as he let go and ran off in shame. His sweaty hands had left marks on Karen's shirt. She tried to wipe it as more people approached for photo's.