Invite the guys into her changing room

"Hey guys" she said to the group. "I have some more clothes to fit. Maybe you wanna join me in the dressing room so I don't have to get in and out all the time."

They were silent, until one of them said "Nah we're good."

Idiot. Luckily the rest of the group shut him up. Eventually they decided that three of them would join her and two did not have the balls to do so.

Natalie walked them to her dressing room which did not fit all three of them. The dressing room beside hers luckily just opened up, and was twice as big. While grabbing her stuff she bent forward, getting a wedgie from the tiny thing in the process. Her buttocks were spread and her labia pushed while she picked up the clothing and got back up. The boys behind her pretended not to see a thing.

Together they moved everything and entered the new stall. One of the guys closed the curtain and Natalie was now all alone with three horny teens to expose herself to.