AUKG-438 - Sister-in-law and sister-in-law lesbian affair

The power dynamic is a bit confusing, but if I understand the setup correctly, the sister-in-law, Runa Shimotsuki, gets seduced/taken by her sister-in-law, RISA? Or am I wrong? I'm not sure, but both were so hot, so it's all good! RISA starts by giving Runa a massage, but then gets turned around and they end up in a lesbian scene... Then in the bath, they're all over each other, with Runa making RISA climax repeatedly. Just when you think that's it, RISA starts making Runa climax right in front of her sleeping husband. It ends with some lovely lesbian action.