A femullet can't contain her raw sexuality, so naturally, her hair becomes a conduit. Any sexual partner of the femullet receives infinitely more release and gratification than a normal woman can ever hope of giving. Some cultures revere the femullet's power of fertility.
If you manage to snip off some of the femullet's hair, burn it and inhale the fumes, it is said to have an aphrodesiac effect.
Ellyse: Yeah, she bought like 20 egg McMuffins and now she's just scarfin'. Niiice.