Advice!

So I was giving my man head, I'm certain he was enjoying it. I was down there for a couple minutes I think and I thought maybe he had cum but I wasn't sure (he's not very vocal, touches my head, pulls hair and squeezed my arms) and so I kept going and he pulled me off (I rarely stop unless he stops me first) I didn't ask if he came yet bc he's always wanted me to suck him off but he pulls me off.. And of course we had sex after and once he goes that's it.. How do I ask wayyy after if he was enjoying it/came..without sounding weird about it..??