Your mum agreed to suck off your bully as a last resort to get him to leave you alone. Her two demands were that he not film it, and that he not cum in her mouth. But, as you could have told her, he does whatever he wants.
Is it ok if I suck your cock after you spank me? I know you already came once, but I thought you may like to do it in my mouth as well. Am I a good girl?