It’s not often but I hear this occasionally from my partner. She is not in a rush to do something else, she’s just had enough of getting fucked.
She doesn’t seem to realize that the negative feelings of that phrase actually inhibit you from cumming.
A better line would be, “I’m feeling a bit dry. Would you mind releasing your load into me now?”
Now that phrase would trigger a quick finish
“I want you to cum, baby” in a sexy desperate voice would work.
If she’s just like, “are you done?” then I’ll stop and go jack off. I can’t enjoy sex if they’re not into it.