I Mistook My Big Sister-In-Law's Ass For My Wife's And Slipped My Dick Inside. Alice Kisaki

寝ている義姉のお尻を嫁のお尻と間違えて、義姉とは知らずに即挿入。 希咲アリス

Shinji tries to make up with his wife, who is sulking after a petty argument, by initiating makeup sex. He kneads her plump ass while thrusting in and out for a raw creampie. Feeling her tighter-than-usual grip, he feels good and goes in for a kiss... only to find it's his wife's sister! 'S-sorry, sister-in-law!' The sister-in-law forgives Shinji as he prostrates in apology, but she can't suppress her own aching body.