6, gender bender

Wishing for his son to have children, the father was quickly surprised when he turned into the woman of his son's dream and appeared before him, becoming cloudy, only to wake up in bed with his son and mentally accept that he is now a woman, happily raising his son's kids and letting him take a second and third wife who fell in love with him and accepted polygamy because of the confidence the father helped build with her bombshell body.