Pleaser

A person that will do anything to please their partner. This person gets pleasure from pleasing others. A pleaser can be either Dominant or submissive.

While this term overlaps with Pleasure Dom, the difference is that rather than necessarily enjoying "pleasing" their partner, a Pleasure Dom is generally enjoying the strong reactions of their partner, and the fact it is done under their power/by their hand. A Pleasure Dom could easily (with consent) get enjoyment out of inflicting pleasure upon their partner, whether that particular form of pleasure is something the bottom is asking for or enjoys.