OK, the manga was much better than I was fearing, it’s a good one, I can let out a huge sigh of relief ^_^
Succubus Appli is a 204 pages long volume split in two distinct arcs.
– The first arc is about succubi inventing a new way to milk the sexual energy from humans. Rather than doing it old school, why not invest in IT, and make better use of phone apps? At first sight, we’re with the usual hypnotism app, like in every stereotypical saimin app story… But, fortunately, there’s a twist. Well, still, two highschool girls are non-permanently (think of it as flipping a horny switch on for a moment, and then their memories are erased in the end) turned into brains-free sexual relief cum dumps, so, ahem, yeah, right.
– The second arc is about a young man hired for highly suspicious clinical trials: two hot women, a doctor and a nurse, will be testing how successfully the various libido enhancement drugs they develop manage to boost his sexual prowess ┐(￣ヮ￣)┌
The drawings pack a serious punch, with very few breaks between the action scenes. You’ll have tons of vaginal, a fair amount of anal, and, something kinda rare, a good number of deepthroats too. All of that, with easy to ignore, most of the time hardly noticeable censorship, woot! 
It’s a Doujin-Moe scanlation, thank you! 
By the same artist, I also share Sakusei Pink Cyclone.
