【Also by】App de hentai Pool no Sukusui Mermaid [Single Story].

The latest in the TF app series that can transform humans into monster girls is a beautiful childhood friend turned mermaid! Shintaro, a student who loves monster girls, and his childhood friend, Kanako, who is not too happy about being turned into a monster girl and having sex with him. One day, the two of them are cleaning the pool, but once again, Shintaro uses a perverted app on Kanako, and she transforms into a mermaid while still wearing her school swimsuit. Kanako’s sensitivity increases as her favorite Shintaro touches her scales and her ample breasts. She drops him into the pool and gives him a tail job in the water, and uses his mermaid body shape to her advantage in a 69. Unable to control her growing lust, the beautiful mermaid inserts her cock into his vagina. The beautiful mermaid passionately wraps her tail around his cock and repeatedly extracts it underwater.

This work has been published in [Comic Unreal Vol75 (BJ165753)].