My wife is hospitalized, so my mother-in-law came up from the countryside to help with housework. For a while, it will be just the two of us living together. I'm busy with work and haven't seen her in years... Wait, was my mother-in-law always this erotic? I somehow feel very horny and try to approach my mother-in-law, but (as expected) I'm naturally rejected. However, we gradually become closer, and with a one-time promise, I end up doing it with my mother-in-law…