Betrothal

At first it was just an uncomfortable sensation, but as Zuko pushed in further it got worse until finally the tension broke and the feeling became solid pain. Katara bit down on her finger as Zuko pulled out and pushed back in. The initial pain was over and all that was left was a stinging that lessened with each thrust. Zuko’s eyes were closed and his breathing had sped-up. He was completely immersed in the sensations. It felt amazing and feelings like this were so rare to him.
Zuko, (having apparently lost the power of speech) leaned back a little and tried to push her hips up and down with his hands. Katara got the message and started responding, it was then that she started to enjoy it. When she moved against Zuko, he went deeper and touched the same spot his fingers had before.
Katara pressed against him with harder and quicker movements, the feeling was amazing and she wanted it to keep happening. Zuko sat back on his heels and pulled Katara up with him, her legs on the sides of his, this position allowed him to press harder on that amazing spot. Katara whimpered with desperation as he continued, without the added stimulation her other sensitive area as before this would take longer. As the pressure built it felt so good, but almost unbearably painful at the same time.
Zuko could tell what she wanted, it was the same thing he did. Just to reach the end result and get the instant gratification, but he could hold out. Denial was something he had learned well. It wasn’t easy though, she truly was a virgin. Wrapped around tighter than anything, even his own fist, he wasn’t sure how much longer he could wait.
Reaching down in between them, Zuko found her again and started massaging in a circular motion. Katara gasped and arched her back so that her body would press harder into him.

“Zuko!” she hissed, “Oh Zuko!”
Katara pushed up on her knees slightly and tensed her body, doing her best to keep him pressed against those spots while stretching to allow the proper tension for her release. It hit her hard and fast, causing her to once again lose control and fall, but this time Zuko already had his arms around her and was ready. He leaned back further and pressed her hips harder into his, her orgasm having provided the extra lubrication he needed. He finally let himself go.
Pushing harder and faster into her, Zuko could feel the tension building up in him as well. He pressed harder and faster, harder and faster until the entire world went white with static and his mind emptied of everything except for the sensations hitting his body. He continued to thrust just a little, following his primal, unconscious urges to get every last drop out into this virile young female.
Zuko pushed Katara back into the water and collapsed on top of her, his breathing shallow and ragged. She looked at him, her eyes still hazy and her breath still fast.
He couldn’t help himself, even though it was over, Zuko kissed her.