I asked that question repeatedly.
For me, I enjoy writing sex scenes. I enjoy the freedom, and fantasy in the sex scenes I create in my head, and transfer them into my books. A healthy dose of fire hot, sizzling sex, or hard fucking is good for the body, and my novels.
One of the big reasons I chose erotic romance is because, I can be free to express myself in the male/female POV, and I can try, and be as raw as I want to make it.
Of course, there has to be a plot, a dialogue, characters’ growth or maybe the characters have grown, and a happy ending, that’s a given.