14:

As the ball drew closer, Draco, Ginny and Luna became more excited about what the evening would bring. All the students in the school would be in disguise. Wigs and masks would be worn, and everyone was suppose to not ''go" to the ball with anyone. This was all in effort to promote house-relations.
The three lovers decided to not see each other anymore until the ball to build up the excitement and anticipation, and it was driving all of them crazy.

A week before the ball Luna and Draco passed each other in an empty hallway, but they couldn't do anything in case someone suddenly turned a corner and saw them. Luna could see that Draco was fighting with his will power to not jump on her in the hall and make her scream in pleasure, and she was tempted too. But, just to drive him wild, as they passed, she placed her hands on her breasts and squeezed and lifted them up, and letting out a sigh.

Draco watched as Luna tempted him by fondling herself as he passed by her and un-tightened his tie as he went. That gesture gave him shivers all over his body and he immediately went to the bathroom to release himself temporarily of his sexual frustration. Luna and Ginny were crowding his thoughts and he found himself trying to break free of them by doing wilders and more erotic things with the girls in Slytherin.

Two nights before, he made Pansy scream so loud, so much, that when he finally left his room to go get a drink, he got pats on the back from the guys. He even had a foursome with three other girls and watched them screw each other three times first before they all focused their attention on him. When he left that time, the guys of his house clapped and cheered, but it just didn't compare with when he was in bed with his enemies, and the entire time he thought of them.

Ginny stopped concentrating in class, and she always woke up from the most wonderful dreams wet and happy. When she saw Draco in the crowded hall she couldn't control herself; she ran and hid in the girl's toilets, and she could feel her pulse beating hard in between her legs.

15:

The night of the ball came. Draco had a gratifying bath in the Head boy pool, taking full pleasure in the glorious soap scents, and receiving gratification in the erotic water jets which had a way of hitting him the right way in the right places.
He combed his hair and drank a potion which turned his silver-blonde hair into a sandy-blonde, and his eyes turned a brighter shade of blue.
He slipped into his silk boxers and his all black dress robes and suit. His mask was also all black, which accented his cheekbones and made his eyes somehow seem bigger. Just like in his notes to Ginny and Luna, two peacock feathers were by his left breast pocket.

Luna got ready very efficiently. She took a hot, steaming shower in which she couldn't help but soap herself generously with a sponge and she took a longer time to dry herself off with a cashmere-feeling towel. She put on her black heels, her lacy- black thong and bra, and she admired her body in the mirror while she took a potion that made her apple-green eyes turn darker, and her blonde hair stayed blonde, perfectly curly, but with a black under layer.
Luna slid into her navy blue dress that showed off much of her chest. Actually, she was quiet sure that McGonagal would probably tell her to change, but the thought didn't stop Luna from wearing the dress. She lined her eyes, rouged her lips and put her mask in place. Looking at herself in the mirror, Luna wondered what Draco and Ginny would look like. God, she was excited.

Ginny took her time getting ready for the ball, masturbating twice while in the prefect pool, another time while drying herself, and again before she finished dressing.
Her eyes would not change from their icy-blue because of the accident she had in potions class, but her hair went longer, straighter, and raven black.
Ginny's chest had never been more exposed, not including when she was naked and frolicking with Luna and Draco, than in that dress.
She felt empowered and she looked like a goddess. Ginny finished her makeup and put on her mask.