When I was a young boy, this was the time of year I would start looking in my Mom's bedroom for hidden Christmas gift's. It was also when I started looking at her underwear and lingerie. My Mom was a full figured curvey brunette. She had big double D breasts and a big full round bottom. This was back in the 70's, and open bottom girdles with garters filled one of my Mpm's dresser drawers. Every color, with matching bras. Her panty drawer was my favorite. Lot's of satin panties. And a large number of see thru nylon panties.
I would rush home from school, (Mom was still at work for a hour more.) run up to her bedroom, sit on the floor, and masturbate using a pair of her beautiful panties. I would pretend she was in the bedroom watching me. pretending she was letting me see her big round bottom. Telling me I was a naughty boy.
This went on for a couple of years till I started messing around with girls my age. After that i never fantasized about my Mom anymore.