You(-chan), Chika and Riko are going to taking a bath in the onsen. While waiting for Chika, You and Riko wished that it may be better if Chika is male, and somehow that wish came true.
Doujin info Doujinshi: NO DATA Melon: https://www.melonbooks.co.jp/detail/detail.php?product_id=209393 Tora: http://www.toranoana.jp/mailorder/article/04/0030/51/57/040030515786.html
POTG: You(-chan). Unexpectedly bold on male Chika. She's skilled as hell. Almost no space for Riko action. Now I could only hope if she's this bold on female Chika instead.
Many thanks for Insti who bought this doujin for me!
PS: Somehow I think this looks very close to Mikuta works. The same artist but with a different pen name for hetero works?