Boyfriend + Buttplug

My boyfriend and i have been together since July and i stay at his place most nights. A few months ago i found a buttplug behind one of his bathroom drawers. (Something had fallen from my drawer to behind the one below it which is the bottom one.) When i pulled the drawer out, that’s where the plug was.

He had never communicated interest in that stuff to me and he lives in an apartment so i was like, maybe it was the previous person’s? I did kinda check on it occasionally and it hasn’t moved the entire time i knew about it.

Tonight i went somewhere with my friends for a few hours and when i got back, i went to the bathroom and couldn’t help but look and this time it had moved so it definitely is his. His headphones were by the bed and the bathroom is connected to the bedroom so i figured he was watching porn or something earlier since i saw them on my way in there.

I’m kind of but also really upset about the porn or that he likes the butt stuff? But i am a little insecure and i don’t know what to do. Why hasn’t he brought it up to me?