Anyone know what's the title of this sexy manga

It's an illustration for the front and back cover of an issue of the .ism magazine, in which Sex Therapist was serialized. The artist is Oyamada Ami, but there's no series to go along with it.

Nevermind for the artist, it's the wrong one, but yeah it's a cover. Anyway, it's from 犬塚凶互 lol.

Thanks