You have to be kidding me. Just put your hand on his crotch. The rest will take care of itself.
SHOW YOUR TITTIES!
Wear a short skirt with no panties and sit across from him and make sure he sees your pussy.
Just whisper in his ear with your sexiest voice, "I want to suck your cock so bad."
Sometimes you just can not. Say for example your fat and ugly and he's been having sex with a hot skinny gal. Probably not a thing you could do to get your way with him.
Wrong about the hot skinny chick. (#1) skinny looks good dressed, not necessarily so good undressed. (#2) never underestimate the power of being eager.
If you are not just willing but actually eager to please a man (or a woman, I suppose), you will give both of you more pleasure than a self absorbed "hot chick" (or "studmuffin") will ever have a shot at.
The "hottest" chick I've been with was actually quite a dissappointment in bed. Very quiet, very passive, I could just as well have been with a blow-up doll. My best times have been with women who showed some enthusiasm for the task at hand.
When the clothes are off and the two of you are between the sheets, looks don't mean much but skills & enthusiasm do.
Last tip - Every guy I know is blown away (no pun intended) by a gal that tells him exactly how she wants to be fucked. Faster, slower, deeper, harder, etc., etc., etc. Trust me when I say that when a gal says "I want it, I want it" she by gosh gets it.
Because we desperately want to please you. If only to ensure that we get another shot at you. I have yet to talk to a guy who wasn't turned on in the extreme by a woman who told him exactly what she wanted.
How wrong you are.
Wear black stockings and a garter belt and let him see them.
Suck and lick a banana in front of him while you rub your crotch.
MAYBE HES THE WRONG GUY FOR YOU .USE YOUR SKILLS TO FIND SOMRONE ELSE.