You asked her to speak in private

"Amanda, can I speak you in private?" You asked her without anybody hearing.

"Sure." She replied. You both went into the storeroom. There Amanda locked the door behind herself without you noticing. She gave you a big smile as you turned towards her. "Are you wearing the bra I gave you?"

"So you really did put the bras and thongs into my my bag." You replied rather calm.

"I wanted to play a little trick on you. I hope you don't mind."

"You know that you got me in a rather embarrassing situation?" You asked.

"Where is the fun, if not in getting somebody else embarrassed?" Amanda took a few steps towards you. "Now tell me, my cute Alexa, are you wearing one of the bras and thongs?" She got so near you stepped back until you hit a rack.

"Why should I tell you?" You asked embarrassed to tell her the truth.

"You could also show me, if you don't want to tell." Amanda got just a few inches away from you. "If you don't, you won't get out of hear without something else embarrassing." She put her hand on your genitals and rubbed your hardening penis through the uniform-dress and thong.