I'm in a state of boredom with my wife, so I succumbed to my step-sister's temptation without bra or panties...

[A body that is more sexy than a wife] I am in a state of boredom with my wife. The relationship cooled down, and my wife went on a trip alone to relax...at the time, her wife's younger sister, Ibuki, came to visit. But things are strange... She's provoked by her see-through nipples and breasts without a bra! Plus, she spreads her bold pussy without panties! He gets close to his ear and whispers, "You're cheating on me while traveling anyway," and seduces her! I straddled my hips without my permission, and I succumbed to the charm of my big G-cup slender body that my wife doesn't have, so I ejaculated many times...