I just love torturing my slaves large tits until they turn lovely shade of purple. It is like buzzer going off & letting me know that thong bondage session is complete. I especially love blind folding my slave during these sessions. That way they cannot see their tits change color & thus have no idea how far along they are in their breast blindfold session. however *I* know! I can see sweet, deep, lovely shades of purple that submissive's breasts are turning, & I know just how much torture I have inflicted.