I've got what you came for, Spidey.
I think that one is Slimdog
gelbooru for most stuff, otherwise you can look up their pixiv/nijie/twitter/whatever
Dude, just go install the game and play it with a walkthrough. It comes fully translated in English, and once you see a sex scene you can replay that scene as many times as you'd like from the main menu. It's actually a decent game, believe it or not. Final boss is a tad wonky though.