You told your wife you were into exploring some kinky things at a local dungeon. One day she surprises you by bringing her step-sister along for the ride! Her younger step-sister who you have always had a thing for. You always thought she would totally be into this kinky stuff, and here she is, right in front of you with your wife encouraging her! She's going to cuff you into a steel chair and tease you to tears. You are so fucked when your wife finds out how much this excites you.

Your step-sister-in-law and wife team up to tease you.