assertive female
A female character who is sexually assertive or in control of her partner. A milder version of femdom.
This is typically when the girl is on top or clearly in control - no frowning, gaping, blank stares, etc. - often with a naughty expression. Basically, she is screwing her partner instead of the other way around. If the partner is also shown to be enjoying it, it might fit better in happy sex.
See also
The following tags are aliased to this tag: assertive (learn more).