And, it seemed, that she planned on doing just that. Any time the runes of the spell looked weak, she'd hit him with another blast. Charm or another binder, she changed it up.
He was getting annoyed by this, eventually waiting until her back was to him completely before moving and mounting her. He snarled lowly in her ear as he pinned her down.
He snarled louder and forced all his weight on her, pushing her down onto the floor. He didn't attack her or anything, just mounted her, asserting his dominance.