Yeah he wanted to. He wouldn't have asked if he didn't. Klaus shoulda known that, at least. That Ben didn't offer words or opinions or much of anything else if he didn't think they were worth his time. Maybe that'd been a habit he'd picked up from being so passive earlier, but it stuck with him now. It meant when he talked, for the most part, it was for a reason.
And when he acted, when he did something, it was because he wanted to. And this? Ben wanted this. His fingers curved around Klaus' cock, he twisted his wrist like he'd watched him do, followed Klaus' helpfully guiding hand and lost his breath completely because how overwhelming and wonderful it was to have this. "You'll make a mess of me," he said after a moment of quiet, where it was just the sound of them moving, the way their breathing went a bit harsh. Ben's words weren't an accusation so much as a warning, impressed and awed.