My premise involves a teenage son and his recently-divorced mother. The divorce was pretty messy and left the mom rather bitter, which comes out with the formerly fun mom being more strict with her son and kind of grumpy in general. The son wins tickets to see a stage show hypnotist and convinces her to come, hoping it might cheer her up.
At the show, the hypnotist announces he needs a volunteer from the crowd and picks the mother. He puts her under and gives her a bunch of post-hypnotic commands to do silly things, like think she's a barking dog, that she's cold, or to cause her to freeze in place like a statue, only to have no memory of it when he brings her out of it.
The mother and son go home with the mother not believing anything was done to her, because she doesn't remember. The son insists that was indeed the case, and lists off the trigger words, none of which work, until he gets to one that causes her to freeze in the middle of what she was doing.
Confused at first, the son realizes that the hypnotist removed the trigger words at the end of the show, but must've forgotten to remove the one causing her to freeze. He says it again, and his mother resumes what she was doing, not realizing anything happened. Unsure what to do, he tries it again, successfully freezing and unfreezing her, before deciding not to tell anyone.
After looking at her in her frozen state, the son begins to realize how attractive she looks, especially her legs in a pair of shorts, like she usually sleeps in. He eventually works up the nerve to run his hands over her thighs a bit.
A few days later, remembering how he'd only kissed one or two girls in school and neither had seemed to think he was very good at it, he starts practicing kissing with his frozen mother. This continues for a few days, with the "practice" working up to feeling her chest through her shirt, and eventually practicing removing a bra.
Although his mother almost appears none the wiser (though sometimes confused how her shirt got ruffled or her lipstick a bit smeared), after a while, the son notices something happening: His mother had initially been a bit stern, but soon starts acting a bit more affectionate towards him, hugging and kissing and touching him more often.
She starts wearing sundresses or short skirts more often, takes a greater interest in the things he likes, encourages him to do more things together, and even telling him how handsome he is. At first, it just seems like she's become a more attentive mother, but after a while, it almost sees like she's flirting with him. He begins to wonder if the things he's been doing to her while she's hypnotically frozen are starting to have a subconscious effect on her...
What do you think?