Female Pleasure. -I Turned into a Girl and Now Im Addicted to my Step-Brother

On an afternoon like any other, high-schooler Nanaki falls into a pond thats shrouded in legend and suddenly turns into a girl! Although mortified, he loves how soft and smooth womens bodies are, so... Why not have some fun? He tries on his own, but can quite seem to get it right... And thats how Souma, Nanakis step-brother, finds him when he gets home from work! Once Nanakis hero, Soumy is now nothing but an annoyance... That is, until Souma shows Nanaki how to fully enjoy a womans body! Why is he doing this, and why does it feel so good!?