Promotion favors?

Has anyone here actually have been promoted or have a salary increase at their job after offering any kind of sexual favors? I'm curious about the mechanics - did you proposition them or did they make the offer? Was it a one-time thing or ongoing arrangement? Did you get what you were promised, and was there any fallout afterward (regret, workplace drama, getting passed over later)? Genuinely asking for those who've been through it - no judgment, just want to understand how these situations actually play out