I derive great erotic satisfaction by holding my pee until I am absolutely bursting. Sometimes , while I am masturbating, I imagine that I have a girlfriend who locks all of the bathrooms in my house. I have to ask her for permission to use the bathroom and she denies it frequently. I also imagine being in a car with said girl. We go by a drive through coffee store and she orders 3 large coffees and then orders me to drink all of them. I drink them all and then I have to hold my bladder for hours in a car. Naturally there will be no bathroom stops. The girl will pee in my mouth whenever she has to go to the bathroom. Making my need to use the restroom even more extreme. After hours of holding it we finally make it to the destination. The girl goes into the bathroom first and she take a very long shower. I am locked out of the bathroom and begging her to let me in. The dripping of the shower faucet makes my urge to urinate increase manipulatively until I am finally let into the bathroom. Only to find her sitting on the toilet. She is not using the bathroom. She is simply keeping me from using it. She teases me while I am squirming and begging her to get off of the toilet until I eventually pee my pants in front of her.