Saki The Succubus Hungers Tonight Vol 1
Saki just wants to be a normal girl, but she's descended from succubi, so men "react" when she hasn't had any "essence" for a while.
It's basically a hentai plot with a the twist that they are trying not to have sex! The art is very ecchi.
Seems like it could be a fun rom-com.
This is reminding me that I really wanna rewatch Interviews With Monster Girls XP