Knotted

"I'm going to knot you now," Hermione murmured, her voice thick with need. Tracey's eyes widened, but she didn't protest. She could feel the pressure building, the knot of Hermione's cock swelling even larger. The anticipation was almost too much to bear. "I'll do all the work. You just lay there and be brave"

The brunette began to thrust with more ****, the knot pressing harder and harder against Tracey with each movement. The pain was intense, but it was mixed with something else, something that made her want to push back against the invading knot. Her pussy was stretched to its limits, the pressure building until she thought she couldn't take anymore.

But then it started happening. The knot of Hermione's cock pushed in, stretching Tracey's pussy wider than she ever thought possible. It was like a vice, so tight and yet, she was begging for more. The pain was intense, but it was quickly overwhelmed by the most exquisite pleasure she had ever felt. Hermione stopped pulling out now that her knot was opening Tracey up, instead she shoved and shoved, the knot gaining entry by fractions every time.

Tracey's nails dug into Hermione's back as she felt the knot slipping inside her, the sensation of fullness unlike anything she had ever experienced. The pain was a distant memory, replaced by a deep, primal need that was being satisfied in a way she had never known. "Ahhh! It burns but it's so good!" she moaned, her voice a mix of agony and ecstasy.

With one final, powerful thrust, Hermione's knot popped inside her, sealing their connection. Tracey's eyes went wide, her body arching off the floor as she was filled completely. The feeling of being so full, so claimed, was overwhelming, and she could do nothing but whimper and cling to the brunette above her.

"Oooooooaaaahhh, yesss!" Hermione groaned, feeling the knot lock into place, the base of her cock expanding and filling Tracey's cunt completely. The Slytherin's pussy muscles spasmed around her, the tight embrace sending shockwaves of pleasure through her body. She held herself still for a moment, letting Tracey adjust to the new sensation before she began to move again.

Hermione can not pull out very far in with her knot locked, but that doesn't stop her rutting like crazy. The friction of the knot rubbing against Tracey's walls, her swollen g-spot, the feeling of being filled so completely was driving the pureblood girl wild. Tracey's hands had moved from Hermione's back to her neck and collar, her legs wrapped around the brunette's waist, pulling her closer as if she could take more of her inside of her.

The noises Tracey made grew more animalistic as Hermione's knot hit all the right spots with every thrust. Her large blunt tip, almost forgotten in the fame of the knot, was now rubbing against her cervix with a frequency that was driving her insane. It was a feeling she hadn't felt before, the cock was so deep, so big and so out-of-this-world that she was in a whole new realm of pleasure and orgasm.

Hermione's hips slammed into hers, the knot working back and forth inside her with a rhythm that was almost painful in its intensity. The sound of their bodies slapping together filled the library, a symphony of flesh and passion that seemed to echo off the ancient tomes.