My bf and I do erotic spanking. So far we stop at the point when I've had enough---nice marks that last for a few days but no broken skin, etc. I'm wondering what happens if we continue after I think I can't take more---is that subspace?
You could try as far as you can but don't compromise on the safe word. If I (deliberately) bawl loudly and kick with my legs I can take more than otherwise. You could try and see if that helps you beyond where you are right now. But ensure he stops as soon as you want to.