Rolf yanked. If she didn't roll right, she'd knock the wind right out of herself without further work on his part; but she'd long since known how to fall, so in that his luck was out. He yanked her leg again, trying to prevent her from getting closer on her terms instead of his.
He let her get the leg around his waist, shifting closer, but he used his grasp on her other one to press it farther and farther up, carefully controlled because hell, the last thing Rolf actually wanted to do was hurt her. He tried to be careful when they sparred while not holding back much, though there was a line there. The few times he had accidentally hurt her, he'd apologised profusely.