Have you ever talked to someone that you found attractive, wanting to ask them out. But they are just too attractive to not have a significant other?

I [M 23] have been talking to this girl [20]on and off at work, we work in a warehouse so we don't always see each other, and she's awesome. But I just think she's way too pretty to not be seeing some. I'm not confident enough in myself to just straight up ask if she's seeing anyone, and our interactions aren't long enough to segway into a conversation like like. I don't want to make a fool of myself if she does have a significant other. And I don't want her to think I'm not interested in her either (I feel like that might be me getting into my own head but idk.) I'm not sure what to do.