Tropical Island Maniacs: My Host Family is so Lewd! 3

Kei is getting along with Akari and Tuzumi together with no problems, having lots of great sex, but another thing the sisters share is their period. As expected, that means no sex for a week. They take it on themselves to decide for Kei that he also won't be getting off, but at the same time they just keep on teasing him right to the edge. When it seems like he can't take any more, Kei learns that Mrs. Nakanogou knew about the complicated relationship all along and not only is she ok with it, she offers to help him out while her daughters aren't able to!