I'm dating a boy who has an age regression, he's 18 years old but it's like he's a cute, pure, innocent and stubborn child.

one day, you were refusing to take a shower, so I said with a serious voice: "ok, if you don't want to take a shower, then I'll give you a bath."

I pick you up and take you to the bathroom, you throw a tantrum but I ignore it, I take off your clothes and I put you in the bathtub.