while my wife is away on a solo trip, i have a forbidden encounter with my sister-in-law riho. as our marital relationship cools, i can't resist her temptation. "she's probably cheating on me anyway," i think, but my rationality flies out the window. day and night, i have intense sex with riho, who is much more erotic than my wife, and creampie her repeatedly. we continue to crave each other in this ultimate moment. i want to stay connected forever. the sense of taboo and euphoria makes my head spin with pleasure.