XXXL for her Ass 0
XXXL for her Ass 1
XXXL for her Ass 2
XXXL for her Ass 3

Nobody will understand why the Sissy Slut is moaning so much when she saw the "small" Strapon. It will go in her ass, if she like it or not. The 2 Mistress have no Mercy but lots of Fun and shove the Penis so deep in her hole as it is possible.