Mommy went into your room and saw you working on some sort of device. When you weren’t looking, she grabbed it. She used it on you, her stepson! You shrunk to a small size and she jerk you off in between her tits making your cum (implied). Then she uses the remote on herself to make her grow into a giantess! It makes her so horny to be that big, she starts rubbing her pussy and dirty talking about how big she is versus the small people and buildings around her. She decides to fuck the buildings with all the people in them until she cums (implied). She wants to stay this tall forever so she can keep being naughty with the people in the buildings.