[filthypig]

I have but only once.

I was at a laundromat in the evening washing my clothes. I went to the bathroom, it had one large stall and one urinal. I stripped in the stall completely, even my shoes and socks, and tossed my clothes over the divider. I ran out the urinal and grabbed them before hiding again in the cubicle. I sat on the toilet and masturbated completely nude. After about 10 minutes I realised it was fairly empty so I stood and unlocked the stall door, a few minutes past and I opened it, as more time past I opened it more. Eventually it was almost 4 inches open and I sat back on the toilet and leashed myself to a rail on the wall. I wasn’t allowed to cum at this time but it felt so good to helplessly edge knowing I could be caught.