My wife went on a trip aloneー. As our marital relationship grew cold, I couldn't resist the temptation of my sister-in-law, Yuki... 'I bet she's cheating on me while traveling...' Even thinking that, I can't stop myself; my reason flies away... Day and night, morning and evening, while my wife is away, Yuki and I have intense sex repeatedly, cumming inside her over and over... The taboo felt too good...
