Your step dad touches you what should you do?

Assuming you are not of legal consent age, and he did this without you leading him on, speak to your mom. If this happens again, go to your school councilor or teacher. Bypass mom if she has done nothing to help. If you are of legal consent age and you were enticing him, but realize this is wrong, let him know it is over immediately and if he tries it again, you will go to the police first, mom second!