She got started with her younger brother when they shared a house in college.
From what she says...it started as a bored and horny chick thing...on a Saturday night without a date...and she turned to her roommate...who happened to be her brother.
I think her bro did a great job of fucking her...and his sister requested that he move himself into her bed.
Her brother is the reason she got her birth control prescription in college.
I think since she is cheating on her hubby...her brother is the safest one she can trust to not let her hubby find out.
He's probably spent more time in his sister's pussy than her husband.
Sex is a very cool way for a guy and his sister to have fun together.