So is there something you are supposed to do while getting spanked by Angela when she asks you to meet her in the boys room? I ask because either there is a huge bug there where she never spots spanking you, or there is something that you are supposed to do when getting spanked in order to get her to stop.
I've let that scene run for 10 minutes, and she just keeps going. I've attempted this a few times now with no change in result.