Fitting swimming gear

It happened to me once. I was in the market for a swimsuit and found a store where only the saleswoman was present.

She had me strip with the curtain closed and fetched some alternative swimming shorts. Each time she came to deliver another pair she left the curtain a little more open.

I caught on pretty quickly that she was trying to view me. I touched my penis and looked at myself in the mirror until I had an erection. I stood where she could spot me, through the opened curtain.

Finally, she left the curtain wide open as I stood there, showing off my erection. She enjoyed watching me.

Once I got home I masturbated to the thought of the saleswoman joining me and stripping her pants and her panties down, and masturbating also.

This happened in a sports store in Maldegem, Belgium Europe.