A/N: Just had this idea when I watched the movie a few hours ago. It'll just be a one-shot most likely.
Hermione and Ron went to Professor McGonagall's office with much reluctance only to find themselves at the bottom of the Black Lake half an hour later with no explanation as to why.
Hermione was Viktor's 'valuable', as they called it. When they emerged from the lake she regained her awareness only to find herself in a terrible situation. She tried to stand only to end up kicking water. Viktor was right beside with a worried look on his face. Hermione started to panic. She tried to keep her head as much above water as she could but no end. "I can't swim!" she screeched trying to grab onto something. Viktor held on to her with one and swam with her to the docks. Her Gryffindor bravery was fading, she tried to grab onto something on the make-shift dock. Hermione found herself grabbing a hold of a hand that hauled her out of the water then wrapping a towel around her shaking for. She couldn't tell if she was shaking in fear or coldness more.
Hermione looked behind her to find who had helped her out of the water, to find a concerned looking Cedric Diggory. "Are you alright?" he asked as she continued to shake.
She nodded mutely. She didn't trust her voice with the shattering of her teeth. Hermione then saw Harry burst out of the water and tried to stand to see him. Cedric helped her gently to her feet. He continued to hold on to her as she started toward Harry. Hermione turned to Cedric and smiled. "I'll be ok; you go celebrate with your friends," she said gently and somehow managing to keep the chattering of her teeth silenced. "You did a wonderful job today. And thank you for helping me just now." She smiled again and kissed his cheek before going over Harry grabbing a towel for him on the way.
As Dumbledore announced Cedric in first place and Harry in second, Hermione cheered for Harry. She then looked over Cedric smiling in congratulations to him.
As everyone was leaving the lake, Cedric approached Hermione taking her hand to halt her. "Hermione, right?" he asked in which he received a nod of conformation. "Would you like to ride with us? I mean ride in our boat back to the school grounds," he asked smiling.
"Come on, 'Mione!" Fred shouted from one of the boats.
"Yeah, 'Potentially problematic'!" George added. "Let's go 'Moral fiber' here needs to go before he's swamped with fangirls!"
Hermione smiled apologetically at Cedric and turned slightly to the wonder twins. "Go on without me! 'Moral fiber' will be fine!"
"Sorry about them," she said turning back to Cedric. "Never stop with the nicknames."
Cedric nodded and held out his arm to Hermione. "Then shall we go to my boat, m'lady?" She laughed taking his arm as he lead the way to a boat. "Why did he call you 'Potentially problematic'?"
"Fred and George heard me talking with Harry about the egg a few days ago and I said something about part of the egg's message being 'potentially problematic' and therefore the nickname," she explained.
"That's a bit of an understatement, don't you think?" he replied laughing. The two got in the boat he led them to and were on their way to the school grounds.