Oh hot damn..how to dominate?

So I dressed up for v day, white stockings, garter belt and a little plaid schoolgirl outfit on top of that and bf absolutely loved it. He has a thing for me looking really innocent and harmless. At one point we were reverse cowgirl and I said on a whim "spank me" because I'd never done it before and lord have mercy, I think I ascended right there. I've always been into hair pulling and light choking but this really amped it up. I think he liked it too, but he also really wants me to turn the tables. He wants me to dominate and punish him. I'm not sure how? He's really into me stripping for him and teasing but what else can I do?

Oh, forgot about this but when we were just getting started we were dirty talking about being naughty in the library and he was like "what are you gonna do, punish me?" And I don't remember how he said it but he basically told me to shove him onto the bed so I shoved him as hard as I could cause he's easily a foot taller than me and 80 or 90lbs more so it's not like I could actually hurt him. But anyways, holy crap he really, really liked that.