My girlfriend -- Anna - and I -- Jeff - have been together for over a year now, and we started doing kinky stuff pretty early on into our relationship. We've mostly done softcore bdsm play like bondage, facesitting etc. Most of the time, I am the sub, but we're both 'switchs'.
Tonight was the big night we had prepared for some time. Anna had this idea of doing a thrill game in a public place. The plan was for myself to slip into the female bathroom at a local bar unnoticed, get entirely naked in a cabin and have to wait for my girlfriend to come back to give me my clothes.
In anticipation for this, she bought me a chastity cage which I'd been wearing for a whole week. I was already getting beyond horny, not being used to not having an orgasm for extended periods of time. It also added to my frustration of not being able to relieve myself while trapped in there.
So we drove to the bar. I was feeling really nervous but also quite aroused at the idea of what we were going to do.
Once inside, we sat down and we had a beer together. I had a difficult time doing small talk and could only focus on what we were here for, which Anna obviously noticed and it made her have a quirk the whole time.
When it was decided, she went to the bathroom to check if it was clear. After some time, she looked at me across the room to signal me it was OK.
I walked into the bathroom, making sure no one saw me. The doors were in a remote corridor, so it wasn't too hard.
With no time to lose, I hop inside a cabin and start removing all my clothes and hand them over to Anna. She puts them in a shopping bag she had brought in her purse. She also made me wear high heels, in case somebody looked down.
"I'll be back later tonight in a couple hours. I'm going out with the girls. See you soon!"
As I heard the door close, a deep sense of fear went thru me. I felt as if I was held in bondage, but way more intense than anything I'd done before.
It didn't take long before the door opened again, hearing a conversation between two women. I felt somehow humiliated even tho they didn't know I was in there, being so unprotected and exposed. One of the girls entered the cabin right next to me, which startled me. I hear her putting her panties down, sitting, and then liquid falling into liquid. The thought of being right next to her makes my cock rage inside its cage, becoming even more tight than it was. I struggle to stay silent and not moan or make any sound.
It goes on like this for quite some time. Overhearing the conversations seems very surreal, as I have nothing else to do but listen to what they say. And it wasn't about topics I'd been used to hear from women, ranging from periods talk, boyfriends, make-up, etc. I couldn't help but find anything they'd say as erotic. Sometimes, one would push on my door, which made my heart skip a beat everytime.
After what seemed like an hour or something, a woman came inside while no one was there -- except me, of course.
"Cynthia, are you in here?"
I make sure not to make a single sound, petrified. She then proceeds to go in the cabin to my left. I hear her going thru her purse, looking for something probably. After a short moment, I start hearing a buzzing sound. I cannot believe it. I slowly lift my feet up so she doesn't look down. My cage blocks an incoming immense boner. After a minute, I hear a soft moan. Right after, I feel like I'm almost coming ; by accident, I let out a groan.
I hear a click and the buzzing sound stop.
"Is there a guy in there?" she asks outloud. I start to panic a bit, not knowing what to do.
"You should really get out of here or I will go fetch the owner."
