And not having had sex since then, her body responded eagerly. The fullness of his length and girth was surprisingly familiar yet unlike anything she had ever felt from any of her previous boyfriends. As he pulled back and began to find his rhythm, her body shook as his c*ck was forced against her cl*t. With her opening stretched wide, the tiny nub was more exposed than usual and had no choice but to hang down and kiss the top side of his driving length. Each thrust inward also drove his growing knot against it, stimulating it further with a mix of pain and pleasure. But unlike when he was fingering her lips, she didn't restrain herself from rolling her hips against her brother's crotch. At the same time, the heavy weight of his balls beating against her ass tempered her growing arousal and reminded her why they were doing this. They weren't fucking for fun or because they were into each other, but because he intended to impregnate her. They each might find some pleasure in the act but it was secondary to his purpose. The only reason they were in this position was because she was ovulating and he had caught her scent before she was even aware of what her body was doing. It didn't matter that she was his sister. She was simply a woman in heat to the wolf residing in her brother.
A wolf that was increasingly making its presence known with his increasingly dangerous sounding grunts and groans and the way Jacob bared his sharp teeth. Angel reluctantly admitted to herself that it was an amazing combination of dangerous arousal that could not be found in anyone else.
Despite knowing it was wrong and having been obliged to fuck Jacob for a second time, she reluctantly enjoyed the sex for what it was. No longer in control of his hips, if he ever truly was, Jacob felt like a spectator to his fuck.
His c*ck was on fire from the wet friction of arousal, and, as he drove increasingly faster into Angel, it kept getting harder. The scent of Angel's body and specifically that of her p*ssy grew stronger further stimulating his urge to breed.
She was in heat and only impregnating her would put an end to the hormones that flooded her body and drew him to her. As he approached his climax, he could feel his knot steadily growing with each thrust.
His hips slammed into Angel progressively harder in order to get the swelling lump inside her. Each time her tight entrance reluctantly closed around it, a highly sensitive bundle of nerves on the backside was stimulated.
Increasingly, he focused less on the sensation on his hard length and more on the feeling of having his knot inside her and shortened his thrusts to have it happen more often.
As Jacob moved steadily closer to his climax, Angel saw the change sweep over her brother. His face began to elongate and take on a more lupine shape while the hair covering his body grew denser and furrier. Over the sound of their flesh slapping together and their moans and grunts, she heard the fabric tear next to her head and at her feet where his claws tore into the mattress.
With a suddenness that was unexpected, he pulled out and, using a surprisingly smooth motion, she was quickly flipped her over and pulled onto her knees. She screamed as he slammed back inside seemingly without missing a beat. Her cry redoubled as his transformation completed and his knot popped after a second thrust, locking them together.
She squealed in pain as it felt like her p*ssy was stretched even wider than when she gave birth. After registering the pain, her body tightened and convulsed in orgasm. It was intense and she couldn't help screaming continuously as her body fought to free itself from the bulging invader while also responding to the pure arousal coursing through her.
In his full wolf form and unable to go anywhere, Jacob's hips moved with a rapid fury, priming the pump that was his balls. With his paws on Angel's shoulders for balance, he lowered his head and gripped the nape of her neck with his mouth not to secure her in place but to further claim her as his. Her cries and struggling for freedom only enhanced having his shaft and knot stimulated by her convulsing p*ssy.
His sister's passage did its job milking his length and he soon felt his balls contract. He let out a muffled howl of triumph as his climax hit and he felt the hot rush of fluid move through his length then exit with substantial force to shoot deep inside Angel. Even as his human self hated that he was no longer completely in control of when he had sex, the wolf loved the feeling of breeding his bitch.
Whether it was the two women he had attacked or Angel, the moment his knot popped nothing else mattered beyond getting his load into them. It wasn't for the feel of orgasmic pleasure but for the primal knowledge that he was producing offspring. Though he knew it was not anatomically possible, he pictured the pointed tip of his c*ck piercing Angel's cervix, holding it open and functioning as a funnel to direct each shot of cum directly into her womb so it could coat the lone egg that awaited fertilization. That was all that mattered and his body recognized that by flooding her with a substantial amount of cum that had nowhere to go except deeper into her body.
As Jacob felt the last of his seed leave him, he sighed contentedly. After giving her neck a small series of licks, he released her neck from his mouth and settled in to wait for his knot to shrink. Hearing movement behind them, Angel looked over her shoulder and around the wolf draped over her to see their parents in the doorway of her room with sad expressions on their faces.
"Are you okay?" their father asked quietly, worried that Jacob would suddenly attack them. After letting out a sigh, Angel responded, "Yeah. I guess." "I'm so sorry, honey," her mother said.
"You asked me and I told you I agreed with the doctor. I honestly thought we had more time before we had to get you out of here." "I know. I thought so, too. But I guess we were wrong." Their father took a hesitant step into the room as he said, "I know it's a horrible thing to suggest, but maybe you don't have to keep this one." He backed up quickly as Jacob turned his head and growled threateningly at him.
Despite the fact that she hadn't necessarily wanted to have another child with her brother, she agreed with Jacob. "That's out of the question." "We support you no matter what, but what are you going to do?" her mother asked. Her sad frustration caused her voice to quiver.
"I know it's not your fault or his but this can't keep happening. And I hate to think what might happen to your brother if he weren't here." "I know," Angel said wearily. "But can we talk about it later? This is already embarrassing enough without having the two of you standing there staring. And Jacob really should be able to have his say as well."
She shivered as Jacob licked the side of her face with obvious affection. "You're right. We'll leave you." As her parents closed the door leaving them in privacy, Angel slowly flattened herself onto the bed to wait out Jacob's knot. The movement caused the hard ball of flesh to tug against her and she hissed and whimpered frequently in response as she settled herself. With all of the annoyance she could muster without yelling, she told her brother,
"Growl all you want but this is the last time this happens. Never in my life did I imagine getting fucked by my brother and definitely not by a goddamned wolf. Twice! If I end up getting pregnant, I'm having them tie my tubes. I am not going to spend the rest of my life as your baby factory." Jacob didn't respond. He crossed his paws on top of her and rested his head on them.
As he laid on top of his sister, he smiled to himself knowing the expression wouldn't twist his lupine face. They might have been siblings, but she now was his mate and bound by more than blood. While he wouldn't be pleased if she went through with the sterilization after giving birth, it wouldn't prevent her cycle. She'd still have the hormonal changes associated with it and he'd be compelled to mate with her monthly.
If that's the route she wanted to go, he wouldn't protest too much. Fucking her once a month would be a pleasant trade-off for not having any more children.