Tsuma no JK Imouto to no Gakunai Inkou -Yamerarenai Haitoku e no Yuuwaku | 妻のJK妹との学内淫交 ～止められない、背徳への誘惑～

Bed in school nurses office Inside of shut curtain. [Hey, it is you, can you work properly?] [Don worry, I can work properly] Public health doctor in the other side of curtain... Protagonist Tadaaki who talks with Shouko who is the wife. Between that Tadaakis groins. [Churu, chu, brother-in-law, it is delicious Chupa, rerorero, chu] Chika who is wifes younger sister kneels, it served by using the mouth and the chest. It is, this is no good, to the wife if you do not stop it awareness before...! [Already stop it] On other side of the curtain do not hear it, tadaaki who reproves it by whisper. However, Chika doesn stop that movement. [Chupa...why...? It is fully pleasant and want to do...?] [It is told to do why... Because you are] [It is a sister-in-law...? However it is a please did...?] [It is crazy, that sort of] Afterwards, Chika is going to never stop service, there? Heat improvement fast...

There is a wife in the other side of the curtain. In that sort of situation, tadaaki cannot reject Chika it was thrown into that act.