Koisuru Succubus no Ikenai Jijou

Twin girls, Oona and Hooru, come to the house of Takeuchi Kou, a skilled male porn star. They may look like ordinary little girls but they're actually succubi who feed on sexual desire. They're here to be with their beloved Takeuchi. However, a succubus can't truly be with a human because of their species difference. But there is a way for a...