Gym

You have gym class first period, so you head to the locker room to change. You always hated changing for PE because there were no stalls in the locker room; not even for the showers. There was no way that you were ever going to get naked in front of your classmates, so you usually just stripped to your underwear and put on your uniform as fast as possible. After gym class you never showered, it meant that you smelled like b.o. but it was worth it; the showers were insane. There was one class where you did shower because you had fallen in the mud, and after that, never again. All the girls had walked towards the the woman's changing room in a pack, at least five of you had tripped and fallen face first into the mud, so you knew the showers would be packed. All the confident girls started stripping nude the second the door closed, grabbing towels and chatting loudly. We could hear the boys that we had exercised with moments ago screaming from their room. I slowly built up the confidence to get nude, starting by undressing to my bra and panties, as I do everyday. Next I took off my panties, briefly exposing my unshaven pussy before I clamped a hand down over it. Next I reached behind me with a free hand and undid my bra, grabbing my tits immediately. Not wanting to bend over I left my clothes in a pile on the floor and made my way to the showers. I realized that I would have to expose myself fully in order to wash, so, still grabbing myself, I walked all the way to the furthest corner. After a quick look around to make sure everyone was busy, I let my hands fall and started scrubbing at the dirt. Just as I was finishing and getting ready to leave I heard a high pitched scream. I whipped around and saw Anna (a super petite shy girl in my math class) laying on the ground. As I watched in horror, Abby lowered her crotch onto Anna's face with all her weight. I was worried that Abby would break the poor girls nose, but Anna had worse things to worry about. Abby calls out for one of her cronies to bring a shampoo bottle and the smacks Anna's left tit and screams "Lick me you whore!" As the straight girl is made to eat pussy, Abby gets the shampoo bottle. She pours some into her hand and begins to massage it into Anna's pubes. You feel horrible and want to help, but you're frozen in place out of fear. But it's what Abby did next that sticks in your mind to this day; the bully twisted the cap off the bottle, inserted the opening into Anna's (probably) virgin pussy, and squeezed. You could only imagine the burning sensation that being filled with shampoo would cause, but based off of Anna's scream, it was intensely painful. Even worse though, is that after that Abby turned off the shower, pulled Anna to her feet, and said: "Get dressed and go, I don't want you to spill a drop the whole day for what you did to me." And Anna did; she got dressed and left while still full of Shampoo. And I've never showered at school since then, especially not since Abby has reason to hate me now. Thinking about all of this, you head towards the changing room.