Absolutely! Open the door

I pushed the handle of the door down slightly and opened the door just enough so I could peak through. The bathroom was big, there were at least four showers and two toilets. The toilets obviously had their own stalls and were a little bit seperated from the rest of the bathroom, but the showers only had a small, almost completely see-through curtain. One of the showers was in use. I could see two naked girls in there, I couldn't quite see who it was. One of them had one hand on the other girl's crotch and one on her breasts, that much I could see. Girl 1 was fingering girl 2. They were both absolutely in to it, they were kissing eachother and both were moaning, though the girl getting fingered was moaning louder and more often than the other one.

I tried to open the door slightly more to get a better look, but in doing so I tripped on the door step. The door flew open and I landed on the bathoom floor. The girls were surprised by me and stopped what they were doing, looking at me directly. It looked like the second girl was about to scream but the first girl quickly moved her hand on her mouth to keep her quiet.

"Well", girl 1 said. "This is quite a timing. Get up from the floor and close the door, come on!"
I couldn't believe my ears, but did what she said anyways. Then she pinched the nipple of girl 2 and said: "And you keep quiet, okay?"
She moved away from her and opened the shower curtain fully. Now I could actually see who they were.