Disclaimer – I own Nicola, no one else.
A/N – This takes place during the twins' and Nicola's seventh year.
It was a particularly windy afternoon in Hogsmeade and Nicola was brushing her dark hair out of her blue eyes for what felt like the billionth time when she felt a slight pinch on her left buttock. Without even stopping to think she whipped around with her wand out, ready to curse the offending party into oblivion. When she saw the identical mops of Weasley hair she simply rolled her eyes, turned around and continued walking. As much as she would love to curse the Weasley twins, she simply didn't have the patience to deal with them today. She clutched her Slytherin scarf more closely to herself and suddenly she felt the pinch again.
"For Merlin's sake, what do you want?" Nicola turned around, exasperated. She was surprised to find that while she had moved forward about ten feet, the twins had not. She raised an eyebrow at their mischievous grins. As if answering her unasked question, Fred pulled a set of joke teeth out of the pocket of his coat. Nicola was suddenly struck with an idea. She strolled back toward the twins.
"How does it work?" she asked innocently.
"I'm so glad you asked, Niki-kins," said Fred.
"Don't call me that."
Ignoring her request, Fred continued. "We charmed these teeth to bite anything in front of them. Not hard, mind you, just enough to get someone's attention."
"Then we attached a string and charmed it to act like elastic and snap back to the owner after it bites," George finished.
"Pretty simple really." Both Fred and George looked extremely pleased with themselves.
"That's actually kind of brilliant," Nicola said, holding out her hand. "May I see it?"
Overjoyed, Fred handed her the teeth. Nicola looked at the invention for a moment before throwing it on the ground and stomping on it as hard as she could with her boot. The twins' jaws dropped as the teeth shattered into tiny pieces on the cobblestones.
"What did you do that for?!" Fred asked. Nicola grabbed the front of Fred's coat and pulled him down to her level.
"If you ever touch my arse again, Weasley, it'll be a part of you that I'll be stomping with my boot." With a smirk plastered on her face, Nicola let go of Fred and headed into the nearby bookshop she had been intending to visit when the twins had so rudely interrupted her.
As Nicola browsed through the Magical Creatures section, her mind kept drifting back to the twins. She had learned to hate them early on in her first year as they repeatedly pulled pranks on her housemates. She hadn't actually been on the receiving end of one of their pranks until her third year, when they had turned a number of Slytherins' hair red and gold before a quidditch match. Aside from the pranking, Nicola and the twins had never had an actual conversation before today.
Nicola found the book she was looking for, "Fire and Magical Creatures: From Ashwinders to Salamanders." She stood in line to pay for the book and her mind wandered back to the twins again. It was about time someone gave them a taste of their own medicine and she'd really enjoyed smashing those dumb joke teeth. She supposed the twins didn't think she would fight back, which is why they thought they could get away with pinching her arse. She did have a reputation as the quiet, book smart type, but Nicola had never been one to take bullying lying down.
Upon exiting the book shop, Nicola glanced around quickly for any sign of the pranksters before making her way back up to the castle to read her new book.