Your boyfriend wants to try something new. He has never been submissive at all. But tonight, he wants to let you have control. You don't hesitate. You tie him up and tease him with your pussy, rubbing it all over him as he moans and whimpers for you.
Unable to touch you, no matter how desperately he wants to. After rubbing your pussy all over his face, sucking his cock until he almost cums (but stopping), and riding him until he fills your pussy with cum......you have turned your normally dominant boyfriend into a whimpering needy mess. And he absolutely loved it.