The gym I use has 8 showers, 4 across from each other with shower curtains, the upper part of the curtains are 'clear' (to cut down on hanky-panky, I once saw a guy step out of his cubicle, followed thereafter by another man...hmmmmm).
Anyhow the last shower is where/if any activity goes on...simply leave your curtain open and.... awhile back I used this shower (only one not in use) and noticed movement across from me...then realized a solid black body builder was 'soaping up'... we had a great jack off session watching each other....we kept edging back and forth....very very intense orgasm (the worst part of not being able to make a sound...)
Anyhow the last shower is where/if any activity goes on...simply leave your curtain open and.... awhile back I used this shower (only one not in use) and noticed movement across from me...then realized a solid black body builder was 'soaping up'... we had a great jack off session watching each other....we kept edging back and forth....very very intense orgasm (the worst part of not being able to make a sound...)