I'm working on the code for when Callie is grounded and I'm trying to decide how to best proceed for her daily grounding spankings.
Option 1 - Upon arriving home from school each day, Callie has to approach one of her parents and ask to be spanked. That then leads to a spanking cutscene, and a sore(r) bottom for naughty Callie. If she doesn't do so in the afternoon when she gets home, she'll be spanked harder that evening.
Option 2 - A minigame in which after arriving home she has to "run a gauntlet" and that will decide which of her parents spanks her each afternoon. It will be possible to make it upstairs to her room without being spanked, based on her luck and your skill. However she'll probably be spanked later if that happens.
Option 3 - One (or possibly both -- who will be determined at random) of her parents are waiting for her in her room when she gets home and she gets spanked there. Unavoidable.