Cindy won her last two official fights (against France and Tania) so she’s Mackenzie’s next eligible Challenger for the Combat Title. These two have fought 3 times, with Mack winning the last two, and Mack also beat Cindy in a nipple duel back in the day before her breast augmentation.
And since the fight is in the Pit, where the only way to win is by KO, orgasm submissions don’t count, so it’s anyone’s guess who’ll leave the most unforgiving fighting venue with the Belt.