Dark-haired Woman Deepthroating With Wild Abandon

Mouth stretched obscenely around a cock, her throat gulping with every bob of her head, the dark-haired woman takes it all with greedy hunger. Fingers dig into his thighs as she hollows her cheeks, her free hand massaging his heavy balls between slurps. Thick cock pistons in and out of her mouth, stretching her lips until she gags but never pulls away, saliva dripping down her chin. Her other hand grips the couch cushion, knuckles white as she forces herself deeper, her body trembling with the effort of swallowing every inch. What does it take to make her choke?