Could someone help me translate "Do it for her" into Latin?
Context: The "it" refers to keep working, fighting, striving, while "her" actually refers to two persons; sometimes individually (so I'd like it in singular personal pronoun).
Background: I'm bipolar, and I try to surround myself with motivational phrases for when I have my lows. For a long time, I've had "Do it for her!" (inspired by this scene: https://www.youtube.com/watch?v=3njZSDjW7Q4) taped above my monitor, and it's by far the most effective one. It's in reference to the daughter I lost and my GF who suffers from both mental and physical issues. I'd like to upgrade it to a tattoo, but at the same time keep it somewhat private (as in not blatantly clear to someone who sees it) - hence the Latin.
Any help would be much appreciated!