Condoms for masturbating?

Lately I been finding condom wrappers laying around my boyfriends room. His room is always a mess. At first when I started noticing it, I didn’t say anything because we had recently used em. (usually we don’t, only for anal) Then more weeks go by and I start noticing more I could tell there was more because they were different colors and we hadn’t been using them. I asked him about it and he told me when he masturbates he uses them to like catch the cum? Idk if i believe it or not. Bullshit or you think he’s telling the truth?? thanks ladies