Amy was now desperate. She urgently eyed the expanding mass at the base of Max’s phallus as it pressed against her glossy lips. He is trying to force his knot inside my mouth, Amy thought. In an effort to achieve this end, she noticed Max had slowed his cadence of hip thrusts, however now he was only withdrawing about a quarter the length of his cock before forcing it down her throat again. Fortunately, throughout this oral assault, she had learned to breathe through her nose, and although the airspace at the back of her pharynx was severely restricted due to being packed with canine cock, she was able to pass just enough air to prevent from losing consciousness.
Amy’s jaw ached from the constant violation of her face. She was not sure how much time had passed, as her waning drug high still made it difficult to track, however she knew that to let her dog’s knot enter and expand in her mouth would likely break her jaw. She could not let that happen! Exhausted, with her face covered in a mixture of saliva and canine pre-cum that had seeped out between the corners of her stretched lips and Max’s distended shaft, as well as wet lines of mascara and eye shadow makeup that had run into her eyes and down her forehead, Amy mustered all her remaining resolve and tightened her mouth around her pup’s phallus. As the knot came nearer, she would press her lips into the hot red flesh as hard as she could. She dared not try to bite her defiler, as she could not predict what he would do in retaliation. Her only hope was to make sure the gatekeepers of her mouth were unyielding to the developing mass at the base of his penis. Each time his knot came in for another assault, Amy squeezed her lips tight to prevent access. Max’s knot would press against her lips and her eyes would water from the intense pressure with the invading member almost to the point of penetrating through when the bulbous lump would ease off and retreat to reorganize for another attack. This occurred repeatedly over the next several minutes until his knot reached full size. At this point, with the wall of his knot pressed tightly against his young mistress’ lips, and his cock embedded deep within her throat, Max ceased his movements.
A few seconds passed without any activity, and Amy began to wonder if Max was giving up, when she saw his scrotum suddenly tighten, and a strong, muscular contraction initiated in his perineum just behind his testicles. The contraction quickly traveled to the base of his cock, past his knot, and down the shaft of his filling member. She felt the ripple move past her lips, over her tongue, travel to the back of her mouth and descend down her esophagus until it came to the tip of Max’s member buried deep within her throat. All at once, a rush of thick, hot ejaculate was expelled from the head of Max’s penis into Amy’s tight esophageal canal. The pulsatile wave that had passed through the penile shaft restimulated her gag reflex in the back of her throat, causing her to retch at the vile filth being dumped inside her. This caused an unfortunate positive-feedback loop for Amy, as the contraction of her throat muscles around his erupting cock had the secondary consequence of effectively milking Max’s dick, ensuring that every drop of semen was squeezed out of his canine balls and deposited inside her. Amy retched and her body convulsed as each thick discharge was spewed from Max’s phallus down her throat. Even though Amy tried to swallow as much as she could, the sheer quantity of sperm was too much for her to handle, and it quickly filled the remainder of her throat, mouth, and even her nasal passages. Thick, creamy-white cum came forcefully spewing out of both her nostrils and the sides of her mouth, as the pressure from the continuous ejaculation was released. The foul deluge coated Amy’s entire face, running down her forehead, and into her hair before dropping to the carpet below in large dollops of slimy liquid.
Max was enjoying absolute euphoria. He could not move during his explosive and prolonged orgasm, but it did not matter, as the young mistress’ throat was doing a good job of stimulating his cock and ensuring that all his jizz was being expended. He was upset that he was not able to drive his knot into her moist oral chamber, but he figured it did not matter, as his body remained pinned against hers on top of the bed. Her frantic efforts to eject him from his dominant position on top were futile.
Amy guzzled and chugged as fast as she could, but the firehose that was her dog’s penis kept pumping rancid, bulky cum insider her throat. She could feel the sticky goo run down her cheeks and across her face at it escaped her mouth. Her stomach began to ache as it quickly filled with sperm. She continued to struggle somewhat, however she was noticeably weakened by the prolonged effort and lack of oxygen. The steady tempo of pulsations from the ejaculating rod continued for some time as Max’s balls slowly emptied, rope by rope. The bluish hue from his testicles steadily vanished as his spermatic chambers were vacated. By the time that the spasmodic contractions finally began to slow down, there was an impressive pool of pearly-white liquid on the floor below Amy’s defiled head. She, of course, could not see anything as her face and eyes were caked with an opaque slop that continued to run and drain into the coalescing pool below her. The substance reeked, and even though the canine ejaculatory throbs were almost completely finished, Amy continued to retch as the acrid smell made her want to vomit.
Max’s penis slowly began to shrink, and as he eventually removed his appendage from her mouth, Amy began to vomit large quantities of cum. Max backed up slightly so that his slack cock dangled in front of her face and placed his forepaws once again at the edge of the bed, allowing Amy to turn over on one side and point her face downward as the expulsions from her oral cavity continued. After several moments as her stomach emptied the last of its doggie seed and her retching finally ceased, Amy collapsed back down on her back on top of the bed. Opening her sperm-coated eyes, she saw Max’s large, drooping penis hanging in front of her face once again, flanked by shriveled testicles. Amy coughed twice, and in a hoarse voice said to her canine companion, “There is no way those balls could possibly have any more sperm left in them”. Max dropped his forepaws down off the edge of the bed and now stood snout to face with Amy, seemingly examining his work.
“Well, I hope you are proud of yourself. As if raping your big sister’s throat wasn’t bad enough, you made a big mess of it which I now have to clean up”, Amy said in an exasperated tone. She realized she was completely lucid now, as her high had long dissipated during her aggressive deepthroating. Max simply turned his head to one side, as if saying ‘Huh?’, and Amy’s mood softened. “Just promise me you will not do that again, okay boy? If you can do that, I will make sure to turn a blind eye the next time you mount a female dog at the park”, Amy stated more affectionately. “I don’t think my throat could handle another beating”, Amy added. Amy doubted the pup could understand any of what she was saying, but Max responded by licking Amy’s spunk-covered face, to which she could not help but giggle. “Go on, you big goof! Get yourself cleaned up and I’ll do the same”, commanded Amy as she turned Max’s head away from her. He promptly waltzed through the bedroom door and out of Amy’s sight, cheerfully wagging his tail.