Hey ladies , what is your opinion on this?

So me and my man have been together for almost 4 years, we have a one and a half year old. So last night, during sex, I slapped him. I don’t know why but it turned me on soooo much and made me finish faster too! He says he always wants us to try new things so I wanted to see how it felt and he liked it a lot and he slapped me back while he was giving it to me. Do you girls ever do anything like that? Or can you guys share what other kinky things men might like? Lol