Consensual blackmail is a high-risk fantasy dynamic built on the feeling of being compromised, using fictional or harmless collateral.

Fisting is the high-intensity practice of inserting the whole hand vaginally or anally, gradual work demanding anatomy knowledge.

GFD stands for Gentle Femdom: female dominance whose language is tenderness, praise, and care.

The hanky code is a handkerchief colour system from 1970s leather culture: colour signals the interest, pocket signals the role.