I knew to have enough quarters before I went in
I had walked by the place plenty of times and heard guys talk about it but I never went in until the curosity got the best of me.
The first time I went in I found out I didn't have enough quarters with be before the curtain closed leaving me frustrated and hard.
So I knew the next time I'd get plenty of them so I would have enough to finish. In fact I have been back so many times I discovered around how many I would need to finish. Anywhere from 2.oo if I was real horny but made sure by getting at least 10.oo to be sure. I would pass guys standing in the hallway appearing to be waiting for either some particular booth or someone do join him. They were all stand up booths except the one at the corner which hand a sit down bench
What I always did was go into the booth, turn around and lock the door and take my pants down before I put any money in the coin slot. Each quarter would give to me aprox 30 seconds. If more are added the window would stay open longer.
After the wondow opened one or more completely naked gals would walk up to my window and spread her legs wide so I could see everything. The clits were all different and some were even pierced with rings in them. I would watch a show given watching her spread the lips apart playing with it with her fingers. She would stay there while I masturbated long enough until I would cum all over wherever I aimed it. A few times the curtain would close while I was stroking so immediately I had to drop in more quarters or she would walk away. Whenever in the area I will drop by and donate my quarters again. Luckily it is opened 24 hours. A couple times I left the booth door unlocked hoping someone would want to come in but so far no luck. I wanted to stroke him too.