How about During?

I told Bridget about my lab while I was plowing her up against the tiled walls of the locker room shower. Or at least I think I did. I was having way too much fun having sex in the shower as I spoke about my favorable deal with the dean. Thankfully, she responded positively, "Oh babe, that's amazing! You do such great work!" Then again, she may have been talking about my thrusts. Either way, I was very happy.

We exchanged kisses between thrusts until I noticed our skin started to prune so I turned off the water. We didn't stop doing it however. Bridget's legs were still firmly wrapped around my waist as I pounded into her. We were both wet and hot with her fingers running through my hair and my hands sliding up and down her sides and legs. Our moaning echoed off the hard surfaces of the locker room as wave after wave of pleasure enveloped us. Her back was solidly against the wall as our tongues collided, losing track of time, I only now began to hear the sound of running water coming from another stall in the shower area.

I stopped moving, much to Bridget's and my own dismay. I pulled my head back to listen clearly and I heard the squeak of a spigot turning as a shower head was turned off. Bridget was in no mood for any kind of pause, so she grabbed me by the back of my head and slammed me back into her mouth again. She does have a knack for making me forget urgent situations so I couldn't help getting a few good feels out of this kiss. But common sense pulled me back to earth and I quickly whispered my suspicions into Bridget's ear, "There's someone else here!" Bridget tensed for a moment which left my dick quivering inside her. By now, she too could here the sound of wet feet walking across the shower area getting closer and closer.

This was definitely not the situation I wanted to be caught in. I was wet, naked, and balls deep in my student inside the shower of the girl's locker room. Bridget and I held very still. We knew any sudden movement would echo loudly off the walls and whoever was in the locker room would certainly hear us; if they hadn't already.

Unfortunately, my dick refused to shrink while still inside Bridget. Normally I would be very proud of this, but I could only imagine my embarrassment if we were to be caught now. With the creaking of a locker door opening and the splashes of wet feet against the hard floor I feared I was going to let out a panicked noise. Sensing my tension, Bridget caressed my cheek and leaned in to give me a gentle kiss. I let out a short breath through my nose and relaxed a little as I pressed my lips further into Bridget's. I heard a few more footsteps before they came to a halt.