This model of Yubel is now fully rigged, it took a great deal of effort but at last this project has come to an end.
she uses IK bones and has a basic facial system, both tail and cock are rigged and can be hidden using the property bones settings (big red explanation mark above her head)
i could have sworn i added this information but the facial system uses FaceIt, its a older version and fom my experience it only works right in 3.6, any version afterwards breaks the drivers
yubel with optional tail and cock, check the shape keys and look for buttockCtrl, ThighCtrl and TummyCtrl to adjust her thickness