Comic-conned

Sadie, Liza, Kennedy, Sarah, and Robin had dressed up for a comic-book/sci-fi convention. They loved Sailor Moon. As they left the parking garage, they asked what seemed to be a nice young man to take their photo. Kennedy handed him her phone, and the girls put their small carry-alls to the side and posed.

"Ready?" asked the young man. "One...two...three!"

It took a moment for the five girls to realize they were naked. They all shrieked and saw their costumes in a pile in front of the young man. They ran for him, but he and their clothes just disappeared. Not only that, their carry-all bags were gone too. Now they were naked outside the parking garage with no clothes, no phones, no keys, no money, and no clue what happened.