SSIS-679 While on a hot spring trip with a friend couple, the incredibly beautiful wife of my friend is clearly trying to seduce me!? Secret double adultery sex... Do it? Or don't do it? Aoi Tsukasa

It was fine until I came to a hot spring trip with my best friend and his wife, until I saw that scene. Through the slightly opened shoji, I saw Naoya's wife with her face buried in his crotch. Even if he notices me, he doesn't stop licking me and just looks at me like, "Look at me, I'm so vulgar." In the middle of the night with alcohol, a soft sensation hits me and a good smell fills me. I lost control and exchanged obscene harrows with my best friend's wife over and over again.