Husband and porn

My husband knows that I don’t mind that he watches porn BUT...

He let me borrow his phone for safari because mine wasn’t working and when I started searching, his recent history came up cause he must’ve forgotten to clear his history. I WAS NOT SNOOPING I PROMISE😂 and it just was NOT what I was expecting and it made me uncomfortable. It was MMF threesomes and gay porn. I really don’t know what to do. Do I talk to him about it or just let it be? I am not homophobic I promise but to see my husband watching that idk made me feel some type of way.. any advice?