SHOULD SEX SCENES BE FUNNY OR STEAMY?

I was reading the NY Times Sunday book review section yesterday. In the Open Book section, writer John Williams explored the notion of whether sex scenes should be hilarious and not so serious. I like my characters to have hilarious moments in their conversation and their relationship, but when it comes to having sex, I prefer it to be steamy. With that said, I think I would prefer the word FUN vs Hilarious when it comes to having sex. I want my characters to have fun, but steamy sex. For me as an erotica writer, I find that most rewarding to write and to read!