I had come on a hot spring trip with my wife, her parents, and myself to celebrate their 25th wedding anniversary. I had been ordered by my father-in-law to make a baby with my wife, so I had saved up my sperm to the limit before the trip. However, as night fell, my wife and father-in-law got drunk and fell asleep early, leaving me alone with my mother-in-law. I was mesmerized by my mother-in-law's flushed cheeks and the white skin peeking out from her yukata. Drunk and overwhelmed by my pent-up sexual desire, I lost my reason and couldn't hold back, so I attacked my mother-in-law...
