When I was a preteen boy my mother would let me see and touch her while she was naked as long as it was under the pretense of helping her.
She would let me rub sunscreen on her, including on her breasts out at the pool. I was allowed to wash her in the shower and she let me douche her while in the shower.
When puberty hit and I started getting erections, she would watch me “relieve myself”. I still masturbate thinking of douching her vagina and her looking at me while I jacked off and came for her.