Would you sleep with someone to advance your career? Why or why not?

Obviously, there are so many variables here, so I’ll try to make this hypothetical situation more tangible:

You’re single, as is the person propositioning you.

Neither one of you is interested in the other romantically.

This would be a one-time thing.

The person propositioning you can guarantee you the promotion / raise / grant / prestigious position.

The advancement at hand is a large career booster.

The person propositioning you is reasonably attractive, but significantly older.

P.S. – I am not in this situation at all! I am just interested in your answers.