My brother's biggest surprise!

Lilly did not like her new step-brother at all, Todd was the worst sort of punk, bad attitude, cocky, arrogant and he thought he was God's gift to women. His father had married her mother nearly a month ago, and Lilly hated it.
He called her names like "teentwat","shitster" and all sort of other things, but her mother told her to be patient with him.
"He can't help being the way he is, his mother raised him, not Carl."
Carl was her new stepfather, and she liked him a lot. He was funny, kind, and in an odd sort of way, he was really handsome. Lilly would have been lying if she said she'd never thought of peeking in the shower when he was in there.

Summer was coming to and end, and Lilly was swimming in the pool, she liked the pool, but she didn't like Todd leering at her while she swam. He was always looking at her in a lustful way when he wasn't being a total asshole to her. Not that she was ever going to have anything to do with him, she couldn't wait until college next year when she could get away from him.

"Hey, teentwat!"
"What do you want, Todd?"
"How come you can swim?"
Because I know how, you dickwad?"
"No, how come you can swim here, but you couldn't take PE?"
"Todd, try to get this through your very small mind, I have a damaged heart valve, swimming and low impact things are okay, but if I got slammed to the court in basketball, it could kill me."
"That's bullshit I think."
"You can check with my doctor, moron, if you want. But the words he'll use are all three and four syllables, you might not understand it!"
"Are you calling me stupid?"
"You see anyone else out here?"
"You think you're so fuckin' smart all the time!"
"Todd, I am, 3.90 GPA, top five in my class, and I got a scholarship to Stanford. Your GPA cannot be measured because you cannot count negative numbers, and a fine future awaits you working on a garbage truck. Now fuck off and leave me alone, will you?"
"Aw fuck you, ya stupid cunt!"
Todd stomped back into the house and Lilly dove back in the pool.