Women who could convince you to lock yourself in chastity for them voluntarily. Who would humiliate you while in chastity. Possibly even turn you into a cock-sucking whore for them.
No mercy for your poor balls - these women will squish, flatten, and twist them. Sometime to punish, sometimes to cajole, sometimes just because they enjoy doing so.
Best practices in applied cruelty collected from all over the net (these are not Womanservant originals). Highly recommended to femdom ladies to taunt and dominate their subs even more completely.