Make her beg. 18mm OR 1-1/2 oz balls 10g 1" Dia. Surgical Steel Frenum Horseshoe.
Sterilized Surgical Steel 10 gauge 1" diameter with Two 18 mm BIG balls Sterilized Frenum Horseshoe. This will only work if you have a back Frenum or frontal scrotum piercing, with this horseshoe the cold surgical steel ball will hit the outer lybia during the penetration and will love it.