I don’t think I ever shared something parodying the Yuuna and the Haunted Hot Springs series. I’ll just mention you can also read it online here. Edit just before posting this share: I went ahead and read a bit. It is ecchi-worthy :3 Edit 2: oh fuck yes.
So, pardon me, I have no clue regarding the story, all I know is there’s the MC, a boy of highschool age, having sex with Miyazaki, his same-age girlfriend (first in school uniform, then in swimsuit, woohoo!), and then having sex (behind the back, booh, it’s bad — I don’t give a single flying fuck) with her mom, a glorious MILF babe with a face saying she needs dick as much as oxygen. Quality art, full of energy and, how to say, “pleasure” to show sex somehow, it’s really, really worth a look
We owe this one to Doujin-Moe, thank you! ^_^
By the same artist, I also share the excellent I Graduated From Being A Virgin, Gahama-san Gentei, Irisu No Tame Ni Kane Wa Naru, Maki-chan To Tukiaitai, Maya-King (now Uncensored!), Kanojo No Imouto Wa JK-chan and Baby Doll.