Enjoyable Shoujo or M/F Smut

This ones another harem trope but the guy gets possessed by succubus and then goes round having sex with anything that has boobs. Still has an interesting paranormal aspect to story and the smut is hawt, so will continue this series. Be wary that there's some threesome and Yuri scenes inbetween.

Young housemaid with older man with grown kids and a wife hospitalised with cancer. Smut is great and the storyline gets more and more disturbing

There is cheating in this but only with secondary characters. Normally I hate love triangles and in this case, it happens to be lots of overlapping triangles going on but it's really good and addictive! I know it goes against my list of pet hates but trust me, this one worked!!

Beware: love quadrangle. But for an annoying shoujo, the smut is pretty good - even though you gotta wait till ch6

The smut scene was so toned down, you may as well have read a fade-to-black scene. Still a cute, shoujo oneshot.

Beware: looks like it's progressing into triangle/harem trope, with weird Yuri/incest backstory. Still, it's enjoyable enough to put on this list. Will delete from list when it goes into Superbad cheating or unenjoyable territory.

Took ages to get to smut scene and it was tame, tasteful and non graphic. Not the worst shoujo, but not the swooniest either.

Main story had one super glossed over smut scene and was pretty cute in a typical, childish shoujo way. Had 2 other seperate oneshots with no smut and meh storyline.

One of the better smut/Ecchi reads. Very devoted couple, no cheating but very disturbing and perverted heroine. Could be a mich more romantic from the male's part but I'm not complaining.