Yeah, my family used to tickle torture me too. They would pretend like they thought it was a game, but I would be screaming and trying to fight back. My mom started the "game", and brother picked up very quickly on the cue that he was allowed to abuse me in that way.

And my mom would often demand that I stand in front of her naked, or she would ask me personal questions about my private body parts. Totally creepy.

I wonder if there is a name for this type of abuse, since it is apparently not unique. The physical abuse has a name. It's just "abuse". But what do you call it when a person thinks up unusual ways to cause physical and mental anguish that might seem excusable to the outside observer? It demonstrates calculated cruelty, IMO.