Re: what should i do
I kinda wondered if that was the case. Most 18+ guys do not refer to themselves as kids. If the step dad is abusive take yourself and siblings to your real dad's house and call CPS. If he is just a jerk, deal with it cuz most dads seem like jerks when you are 15. It will be up to your mom to make the decision to leave when she gets tired of stepdad, if she ever does, women put up with alot of crap when they are in love. If things are bad enough ask your mom to let you and siblings go to your grandmothers, but first ask siblings if they think things are bad, and ask grandmother if she can handle all of you. Ask yourself if things are as bad as they seem, and if they would be better if you make a move.
Best of luck to you too,
Jason