All a female needs is to feel the collar on her neck. Here's one from a reformed FRA agent Cuntry Road Inc acquired and is training. Note the reaction changes from when my trainer puts on her collar for her. She knows it's her place.
Neck collared and leashed, ankles chained, cock humbled, balls stretched, face full of divine Goddess pussy and ass. A pig's dreams really do come true in the Matriarchy.
Real life kajira in the "nadu" kneeling position. it has a turian style slave collar locked on its neck and a "kef" brand on its left thigh. "kef" is the first letter in the gorean word "kajira" which means slavegirl.