An alligator clip.

Attached to my nipple was a silver metal, spring loaded toothed clip. It was strong and its teeth bit into my flesh. Mark looked down in shock, but arousal filled his face as well.

I reached for the clip to pull it off, but as I got close a black man’s hand shot out through the hole and wagged a finger at me ‘No’ the gestured said, before it turned palm up and beckoned me forward. I pushed my tits together and **** as much of them through the hole as I could, Mark once again stood behind me, pinning me in place. My head was turned to the side and flat against the wall. The pain in my nipple had numbed somewhat but my fear and arousal hadn’t as I felt his fingers fumble with the piercing in my other nipple. Then I felt the same kind of sharp pain and winced but stayed put. “What’s he doing?” Mark asked.

“He’s just clamped my other nipple,” I said. I felt him playing some more, fiddling with my nipples and the clips. Then suddenly I felt it. I tingling burning ran through my body, “Oh God.” I said loudly.

“Shut it!” came the command from the next booth. A moment later I felt a more intense jolt. This time I bit my tongue. “Better,” the voice said.

I could feel something between my legs again and at first thought it was Mark. But it wasn’t. whoever was on the other side of the wall had pushed his cock through the hole and was rubbing his bare cock against my cunt. “Put it in.” The voice commanded.

I tried to comply but couldn’t find an angle while still pressed flat against the wall, “I can’t.”

Before I could tell him why I felt an even more intense jolt, “That was a 15 out of 100. Every time you disobey me, I will up it by five. If I don’t like what you are doing, or how you are doing it, I will up it by five.” The voice told me.

I raised one leg as best I could against the wall, Mark helped by holding it for me. I was suddenly all too aware that my boyfriend was helping this man to fuck me through a wall under threat of ****. I moaned as I grabbed his cock.

His cock was thick to touch, and although I couldn’t see him right now, I knew he was black. I positioned his bare cock at my cunt and spread my lips as best I could with the awkward position.

He was only there a second before he pushed forward. He was bigger than anyone I had had before. “Fuck, you’re huge.” I said, before another jolt ran through my tits. “Ow, what the fuck I did what you wanted.” I got another jolt.

“25 now, first one cause you took too fucking long, second for talking back.” He said as he started to fuck my slutty cunt.