My wife and I live with her mother, my mother-in-law Sumire-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 massive breasts visible through my wife. I thought about quietly approaching and grabbing her breasts but held back. On the second day, my mother-in-law's massive breasts were still swaying through my wife. My wife was sleeping soundly, and I couldn't hold back any longer as I moved to my mother-in-law's side. Enjoying her soft breasts, I became curious about her crotch and slipped in a finger. The excitement became uncontrollable as I felt the wetness seeping out, so I quickly left the scene and rushed to the toilet to jerk off. On the third day, I woke up to a pleasant sensation. Looking over, my mother-in-law was sucking on my crotch. When I panicked, she said, 'Didn't you do this to me yesterday too?' and took my ejaculation into her mouth and drank it all...
