Kinky boyfriend?

A couple of months ago I started dating a guy that I knew nothing about. I had just turned 20 and he's 26. I've been staying with him off and on throughout the week for the entire time that we've been together. All I really know about his past is that he was with a woman for 5 years and they have a 4 year old that he has custody of. Well today I was cleaning up the house while he was at work and I came across a drawer that had dildos and anal beads in it. Several bottles of lube and numerous condoms. He has never mentioned anything like this to me and I do know how to tell him that I found this stuff. The lube and condoms have expired so I don't know if they're from when he was with his ex. What do I do?