Thanks for the chapter!
Poor MC, while the girls would probably be more than willing between overdoing magic practice and his antics it doesn't look like he'll be losing his v-card anytime soon. Although, weren't the tentacles created by combing Dark magic not just with Water magic, but with the lotion made by fusing Holy and Water magic? On the other hand wouldn't be first time author forgot a detail mentioned a couple of chapters ago that didn't have time to double check. After all, just one chapter can take weeks or months picking the location, situation, character lines, descriptions of scenery or actions being taken, discussions and/or communications with the artist among numerous other things.
@Reshfan Forgot part where having fulfilled his lifelong perverted dream the MC dies contented and goes to Hell.