I had just finished making the few worksheets I needed for today's lessons so I went to the printer to print them off. The plan was to set them up to print and then while that was happening, to use the bathroom before the students came in. Getting to the printer without having to wait is a rare luxury in a school, and today I was not lucky. Maria was there in front of me, and it looked like she was printing a week's worth of work. Maria was an absolute beauty. Thick, brown hair that came halfway down her back, hazel skin, small boobs with an amazing shape and those gorgeous puffy nipples that respond to fingers and tongues so readily. They were currently hidden behind her shirt. Her ass was proof of God, a perfect shape, beautifully toned and probably a full foot in depth.

I stood behind her with my USB in my hand, trying to decide if I should go to the toilet and then come back, but also aware that if I did that, there would probably be other colleagues in front of me and I wouldn't be able to print what I needed before the start of class. As I waited, Maria bent over whatever she was collating so that her ass was touching my crotch. She started to sway her ass back and forth, still focussing on her work, and I put my free hand on her hip and pushed her further into me. She reached back and pulled her leggings down, revealing that amazing ass, still red from being spanked by someone. She glanced over her shoulder at me, and frowned as she saw me looking a little uncomfortable.

"What's wrong? You normally would be inside me by now".

"I know, I just kinda badly need to use the toilet first .."

"Oh, is it just pee?" She asked, eyes opening wider as she continued to rub herself against me.

"Yes..." I said, knowing where this was going.

"Use me, please, piss on me, you know I like it".

This had happened a few times before. I still don't know how much I actually enjoy the act, or if I just enjoy watching how much it gets Maria off. Being an obliging colleague, I took my hard cock out, rubbed it against her ass, and started pissing on her back. She sighed with pleasure as it soaked her leggings and covered her ass.

She turned to look at me, so my piss was hitting her pussy and stomach over her clothes. She knelt down and bent forward with her head lowered so I could piss in her hair, then she turned to look at me so I splashed her face. She was fingering herself and moaning now too. She opened her mouth and moved so that it filled up with my piss. Then she swallowed. "Please, I'm just a toilet, give me more" she said as the stream slowed to a trickle. She caught the last few drops in her hands, rubbed them on the few dry parts of her clothes, and then licked her hands. "Thank you for pissing on me" she said as she stayed on the floor, still fingering herself and sounding like she was close to cumming, she bent over and started sucking my piss off the floor.

I leant over her and put my USB into the printer, choosing my worksheets and setting them to print. I decided to stay where I was, I started stroking my cock as I watched Maria suck my piss out of her soaked hair as she climaxed. I choose to see if I could find someone else to fuck so I left her to it.

I descended the stairs, cock still in hand, when I saw Aisling leaving the hall. She came in early to work on her art project. She's 18 so she has her free-use licence, it's still frowned upon to use students though. She walked by me and then stopped, not looking at me, apparently just waiting for the bell. I started stroking again, not sure if this was okay or not, technically I'm not using her, and it's before the school day so maybe she doesn't count as student. I wasn't sure if this was good enough. But she just kept standing there, one hand on her phone and other about three inches from the tip of my cock.

I came quickly, my cum landed on her skirt and her jumper, staining them. We have excellent washing machines on site, they're needed as the 18 students are generally covered in cum and grool by the end of the day. A good few of them put their uniforms in the wash at the end of each school day and walk home naked.

Most of my cum landed on her hand though. Still without looking at me, she took that hand, and reached under her skirt, coating her pussy with my cum. She then licked and sucked her hand until it was dry, and kept walking towards her first class.

Maybe my colleague Liz was right, and we should ease the rules on students and staff using each other...