Sexually dimorphic chimeric intersex are what happens when a pregnant
mother (either intersex or female) produces or is in contact with quantities of testosterone in the third trimester causing a male and female twin to fuse into one, then split when testosterone lowers, then the smaller twin is reabsorbed by the larger one. This leaves the resulting child with a
penis, one fallopian tube, a uterus, one accessory gland, half the average amount of eggs, and one small testicle attached to the volva tucked inside an otherwise normal
vagina.