Erotic. The sex is explicit, and often. The bedroom door is wide open.
Sensual. The bedroom door is open, but the sex is not written as explicitly as erotic scenes.
Sweet. The bedroom door is cracked, but there are no explicit sex scenes. You only get a glimpse in the bedroom.
Romantic. The bedroom door is firmly closed. No descriptive sex at all. But there can be allusion to and the suggestion of sex.
Non-romance. Contemporary mainstream fiction including Coming of Age.