Ty felt the thick, deep red phallus of her lycanthrope lover touch her sealed vaginal lips and her breathing came in fast gasps. She felt weirdly... subordinate to him. Not really inferior, but like he had firmly-held intentions of how to treat her, which she not only consented to but felt like she couldn't live with herself if she refused.
She felt the werewolf pry his way inside her, and his hind paws held her hands to the floor firmly. Somehow Eileen's cock had gotten larger and firmer still- the shaft inside her felt overwhelming with how it glided over her inner walls. She whimpered and moaned, making clipped noises as his werewolf cock got thrust in and out of her.
It stood out to her how differently shaped his shaft was now- the long point of a tip rubbed mercilessly at her G-spot and spurned her desire for him. She heard and felt something slapping at her soaked pussy lips, she assumed it to be his testicles, but soon realized this was actually his knot. He kept trying to press in further to fill her with it it, but she was too tight- at least then she had been.
As she felt his body press against her as a result of his more firm and forceful thrusts, she felt the fur of his chest and belly rub at her soft skin. It made it hit home to her how she was getting fucked by an animal, and she felt unashamed about how right it seemed. Getting rut by a werewolf felt more right than anything ever had in her life.
Before long her peak was sneaking back up on her, and when she got the first hint of it, she whined, "G-good boy... put your puppies in me..."
The werewolf understood her desire and began to pump in and out of her faster still. Mate her... impregnate her... have pups with her... his brain was addled with arousal and desire. And his firm thrusting had one intense goal, which made him yip in satisfaction when he achieved it.
Ty felt herself get further stretched, and heard a wet pop, when the knot of her lover's penis slid inside her. While her body was clenching tightly around him, his stretched hers to an uncomfortably great size. Her mind went to how they had crossed the threshold- it was way too late for protection, and withdrawal was unthinkable.
The two of them peaked at almost the exact same time, and while Ty cried out inarticulately in pleasure, the werewolf gave a loud satisfied howl as his testicles twitched against the primate he was mating and load after load of semen flowed from his cock. Ty's inner walls pulsed around the werewolf and milked as much of his seed as he could spare into her. The young woman felt enraptured by both how good her orgasm felt and how she knew she would be getting pregnant in a whole new way.
Indeed, she saw in her mind's eye how the lupine sperm surged through her passages and into her womb. They bore through the outer walls of her eggs, and piled inside them, indelibly marking them with lycanthropic genes. These were not babies she was filled with, but pups.