I have been swimming since I was five. These days I swim squads three times a week at the local swimming pool. My training time is usually the last of the day, even though the pool stays open a little later. After training most of the swimmers in my squad go straight home but because I often have to wait about half an hour before my parents can pick me up, I usually take a shower and get changed at the pool.
The change room is long and has a couple of bays of benches with hooks above them as well as some shower stalls. The room has small windows and when the sun starts to go down it gets a little dark. But I always have the room to myself and this is one of my favourite parts of the day.
After training, some days I can feel very aroused. There are lots of people my age in their swimming costumes. You can see the bulge of boys' penises in their Speedos and every now and then catch a glimpse of a boy with an erection. Other girls' nipples point out and you can see the outline of some girls' vaginas when the wet fabric clings to their bodies. Swimming long lengths of the pool gives me a lot of time to think about all this and to think about what I am going to do when I am by myself in the change room.
Sometimes my vagina throbs so much I run up the stairs to the change room, dump my bag and pull the crotch of my one piece to the side. My vagina is so swollen it basically pops right out. I balance, squatting on one of the benches, and rub my whole hand up and down my slit. All the wetness that has been building up inside explodes onto my hand and feels so good as I rub.
Other times I roll my towel up, place it on the bench (in the corner, just in case somebody does walk in) and straddle it. I rub my vagina gently back and forth, the fabric of my swimming costume tickles the lips and my clitoris. When I have been teasing myself long enough I pull the crotch aside and grind my bare vagina on the towel. Sliding my messy vagina up and down the towel fabric feels deliciously naughty. When I have finished the curly brown hairs are all stuck to my skin.