My best friend is my Step-dad

"Daddy I am for real my step-dad he is a perv whit me"
"Princess I am pretty sure you just imagining it and even you mom wouldn't accept that"
Seth,Roman and Dean are best friends and Dean been really weird lately and Seth want to find out why one day Seth's mom tell Seth to came down stairs and meet someone..he's new step dad Seth jaws drop "what?!you Dean?! Really?!" That's Seth first reaction because not only Dean is he's best friend but they use to date too.
Weeks pass and Dean move in whit them but in school Seth is not that close whit Dean anymore and they have complete being turn apart from each other because not only he's ex boyfriend and best friend is dating he's mom but is being treating him like a child and now he feels like one and not only that but he is being somewhat a pervert whit Seth and tell him stuff like how he buts looks or how good he looks.
What happen when Dean goes a little too far and goes to he's room while he's showering?
What happen when he touches him?
Q