The number of sex scenes are down since 2000 of the movies coming out of Hollywood. But if you're willing to read subtitles, there's still a lot of horny videos coming out of Western Europe.
For me, make the sex relevant to the plot and make the sex they have congruent with the characters.
I have noticed over the years sex scenes usually add no value to the movie. If the sex scene was removed completely it wouldn’t change the story at all.
Yeah, while I do enjoy seeing occasional boobs (which most of the time aren't even showed), if I want to watch sex, I'll just put on some porn.
IMO, The Room is one of the few movies where the sex scenes added anything. And even then, they didn't add anything to the plot, they added to the meta plot, which was the story of a guy with a passionate vision but lacking the talent to pull off that vision, which IMO Wiseau does have talent doing, since he's been able to recreate that same feeling in other content, making me think he's playing a character (Tommy Wiseau the producer) he wants the audience to laugh at.