**You can view the illustrated version of BATHROOM HOG at** [**eroticprose.com**](https://eroticprose.com/step-sibling-erotic-story/)
Like every other guy in the world, I wake up with a terrific hardon every morning. When I wake up, I always have to piss like a racehorse. But usually my step-sister Andrea is in the bathroom, taking a long shower, doing her hair – you know, the whole ball of wax.
Well, one morning, I had to piss really badly. The bathroom door was closed, and the shower was running. I tapped on the door and opened it a crack.
“Andi, I gotta pee,” I said through the door.
“Well, I’m in the shower,” she said.
“Then hurry up, I gotta pee!”
“Go downstairs to Mom’s bathroom,” she said.
“Yeah, thanks,” I said and started to walk away.
Andrea finally took pity on me and said, “Well, come on in then and pee, I promise I won’t look, if you don’t.”