16:

The Great Hall was completely transformed. All tables and chairs were gone, and only light came from what looked like pearls, which were floating scattered across the ceiling. Off on both sides of the hall was a table, where long glasses of pink champagne waited for students to drink. McGonagal and Snape were the only Professors supervising the ball, and both were in costume, but both could be recognized. Only a few chairs with small, circular tables were scattered about at the sides of the hall.

This, would be night to remember.

Ginny spotted Draco right away, standing gracefully at the side of one of the champagne tables, sipping his drink casually. She walked over to him and kissed him softly on the cheek.
"Hey sexy." She whispered.
Draco said nothing, just met her eyes with his. Ginny gave his bottom a little pat and picked up a glass of champagne for herself.

Draco saw Ginny from across the Great Hall and choked immediately. He pretended to be cool and took a sip of his drink.
Ginny whispered in his ear but he was too distracted by her dress to say anything back. Luna came over and also kissed Draco on the cheek, and then Ginny as well. No one else was paying much attention to them and no one could identify them anyhow.

"So how you want to do this?" Luna asked casually, as music started to play and other students started to dance.
"I guess we'll take turns dancing with him." The three lovers had decided beforehand to not use any names, just in case others were listening in.
"I agree- I think we would draw to much attention if we danced together."
"Well, alright, who do I get first?" Draco's voice was back, and he was in a very, very good mood.
Ginny kissed him, and played with his tounge and her own.
"You can dance with Luna." Ginny breathed heavily in his ear.
"Alright." Draco swallowed depply and took Luna's arm.

Ginny smiled to herself- she knew that the entire time they were dancing, Draco would be thinking about her.
A tall boy approached Ginny and asked her if she would like to dance, and she said yes.

Draco was dancing with Luna gracefully, openly staring at her revealing dress, and allowing his hands to move along her back wherever they should so feel inclined to go. But the kiss that Ginny just gave him would not leave his head.

Luna knew that Draco was thinking of Ginny, so, when the song ended, she kissed Draco with more passion, more tounge, and more desperation. All thoughts of Ginny's kiss floated away the moment Luna's lips touched his.