My wife and I live with her mother, my mother-in-law Yuku-san, as a family of three. We decided to renovate the room, but due to the work, we had to sleep in the same room for about a week. On the first night, unable to sleep due to nervousness, I couldn't take my eyes off my mother-in-law's huge breasts visible through my wife. I thought about quietly approaching and grabbing her breasts but held back. The second day, my mother-in-law's huge breasts were still swaying through my wife. My wife was sleeping soundly, and unable to hold back any longer, I moved next to my mother-in-law. Enjoying the softness of her breasts, I became curious about her crotch and quietly slipped in a finger. The excitement became uncontrollable as I felt the moisture seeping out, so I quickly left the scene and rushed to the toilet to jerk off. The next morning, my mother-in-law softly whispered to me, exhausted from lack of sleep, that she wasn't angry about what happened yesterday. That night, while trying to sleep quietly, I woke up to a pleasant sensation. Looking down, I saw my mother-in-law with her face buried in my crotch, sucking on me. As I panicked, my mother-in-law said, 'You did the same to me yesterday, right?' and then took my ejaculation into her mouth and swallowed it all...
