Cedric told Harry that he should open the egg underwater and gave him the password. Fleur said she would join him to help with her clue. Neville offered Gillyweed so Harry could stay underwater longer.

In the Prefect Bathroom

In the swimming size bath Harry in his swim trunks took the right amount of Gillyweed and then felt the changes and dove into the cold lake. He swam around getting used to the changes. It felt amazing. He was swimming quickly without hindrance. He look at Fleur Delacour also swimming. He got hard seeing Fleur fully mature body in her tight white one-piece that was almost translucent in the water.

Fleur was using the bubblehead charm which worked quite well. She then look at Harry. Fleur could also see his horns.

Harry just stayed there as he saw Fleur swim over to him. She then reached out and yanked down his trunks. Harry was too amused to even do a thing. Knowing it was about time. Fleur's soft hand took a hold of Harry's large cock. She stroked it and found she needed two hands. Harry groaned as he felt Fleur give him a hand job. His hips moving fucking Fleur's hands.

Fleur was pleased by this. It amazed her how a boy the size of Harry could have such a big cock like this. She was getting quite wet and it wasn't the water. Her Veela nature was kicking in. Her hormones raging. She ripped the bottom part of her swimsuit and pulled down Harry's trunks then mounted Harry's raging rod.

Harry groaned loudly as Fleur's tight cunt sucked him in.

"Oh fuck, she's so damn tight and hot!" Harry thought.

"So big, so, so big. He's filling me up like no other man has ever done before or ever will again!" Fleur thought.

She then began to move in and out of Harry with her hands gripping Harry's shoulders to give her leverage. The water resistance made it slightly difficult, but it didn't take long for her to find a rhythm. Harry grabbed Fleur's hips and gripped them tightly. Fleur so wished she could talk, let Harry know how she felt about him. But due to them being underwater it wasn't possible.

So she took Harry's hands and had them tear the rest of her suit off so she was naked. She then placed Harry's hands on her lovely swaying D cup melons. She moaned as she felt Harry's hands squeeze and grope her breasts.

"So soft. Her breasts are so soft." Harry thought.

Harry seemed to have shifted positions and used his newly Gillyweed features to full affected. He didn't need air to breath so he didn't wear down easily. He thrust in and out of Fleur's tight cunt hard and faster loving how it held him. Fleur moaned as she felt Harry really go to town on her tight cunt. She moaned and then felt her bubblehead charm starting to fade. She was about to panic when Harry shoved some Gillyweed he had into her mouth.

Fleur chewed and swallowed it quickly and soon she got gills along with webbed hands and feet like Harry just as her bubblehead charm faded. Now both could breath underwater. That meant they fucked each other without needing oxygen.

Fleur pulled Harry's face to hers and they kissed, deeply and passionately. They made out as they fucked. Harry swam them down to the bottom of the bath and press Fleur back to the floor. They were in the age old position of love making underwater.

Both starting to glow gold and silver as both their nature began the binding.

It just spurred Harry to go in and out of Fleur with more intensity than he had before. Fleur's moans produced a barrage of bubbles. She gripped Harry's back tightly. She was doing all she could to hold on since Harry was really going to town on her pussy and she was loving all of it.

Harry's hands were on Fleur's tits marveling how large and soft they were. He played with her hard nipples and even moved his head down and suckled them. Fleur moved a hand to keep his head in place to molest her tits. Harry gritted his teeth tightly feeling his release, but he didn't want to let go, not yet. He wanted to savor this heavenly cavern more. But he loss the battle and ejaculated inside Fleur.

Fleur hit her peak and came just seconds before Harry. She felt Harry's hot seed enter her and she felt a warmth she had never felt before from sex. There was a flash of gold and silver and Fleur Delacour became Fleur Potter.

Fleur loved that Harry was still hard. She flicked her eyes up to meet Harry's hoping to convey the message that she wanted to go again.

Harry got the message loud and clear. He then proceeded to flip Fleur so she was on her hands and knees and started thrust in and out of Fleur once again. Fleur was facing out and Harry was pumping in and out of her. His hands on her tits. Fleur moaned letting out more bubbles as she threw her head back. They kept fucking in several other positions both coming in each new position.

When the Gillyweed was about finished and they needed to get out so they use their last minutes to listen and memorize the golden eggs clue. Then they got out. Fleur didn't have her suit any more all she had was Harry's mark on her arm, but Harry used a summoning charm and got his robe as well as Fleur's. They kissed one more time then arm in arm Harry escort Fleur back to the carriage.

Hermione and Daphne were pleased and they had a four way the next night.