He forces you to swallow

"Get back to sucking my cock or I'm not taking any money out of our debt."

David pinches the back of your neck and forces you back into his crotch. He gives you a break from deep throating and has you suck on the first three inches, using your mouth like a pocket pussy. Attempting to finish him faster, you tongue at his urethra and banjo spring. You place a hand at his base and start to jack him off in the hopes that you can speed up this process.

David stops and flexes himself in your mouth. He replaces your hand with his own at the base, and with his other, grasps a tuft of your hair.

"Open."

You strain to open your jaw wider. David takes his cock and slaps it against your tongue with ****. He forces it into your cheek so your skin protrudes like you've seen in so many porn movies. Only now you're the slut. He lifts your head up and slaps your cheeks with his wet length, getting your spit all over your face.

"Now finish me off."

David, with a firm grip on your hair, fucks your widened mouth, his head bruising a tonsil. You curve your tongue to match his curvature and suction your lips. Regaining control, you return to bobbing your head against his crotch.

"You're such a good cocksucker." You felt his testicles tighten as you lapped at them once more. He was getting close. "Make sure you get every drop of my seed."

You attempted to lift your head, but David was smart and placed his forceful palm back on your head just as he said it. You strained to say, 'You never said I have to swallow' but it came out as garbled gibberish with your mouth full of cock.

"I'm sorry you'll have to speak up," David laughed, "And oh yes, you're swallowing my cum if you want any of that money."

David **** you to deep throat him, bucking again into your face. It was more violent this time though. His pace was more urgent, and his grunts more labored. He threw his phone across the car and took both of his hands to the side of your face, putting all of his strength into fucking your throat.

Your eyes rolled into the back of your head as your throat lost feeling, you gave into the violating sensation of his shaft bruising your throat and esophagus. Could you do it? Could you really allow the cum of this horrible man to be dumped down into your stomach?

"No matter what you do in life, John. You'll always be the fucking wimp who swallowed my cum. Take it bitch."

Accepting your fate, David buried you to the hilt as he erupted inside you. With a face full of tangled pubes, and the stench of unwashed genitals, you felt the heated throb of his length vibrate the fleshy walls of your lips, mouth, and throat. You could feel a thick liquid being squeezed out like a toothpaste tube, going directly down into your stomach.

David groaned and grunted. You could feel his balls contract against your chin. You counted the number of squirts, the first five being incredibly powerful, feeling like ropes of jism were filling up your tummy. Steadily, the thrusts and squirts got less powerful until David leaned back with a sigh. As his cock pulled out of your mouth, the solace you had earned by taking him balls deep ended as a few drops of remaining cum brushed along your tongue. You now got the full taste of his bitter seed.

It dawned on you how shameful this was. Not only were you sucking cock and swallowing cum to keep secrets, but you were doing it in this man's truck in broad daylight. David sighed, whistled, and laughed.

"Now how about we get you some real breakfast?" David tucked his cock and balls back into his jeans, "My treat. I swear, not adding this to your debt. Plus we need to work out how much money each favor will take off."