A/N: Song belongs to Lovin' Spoonful.

Mary smiled and hummed along to the tune of one of her favorite U2 songs. It was weird to her sister, Carolyn, because Carolyn liked classical music while Mary loved rock n' roll. She had all sorts of rock music.

Classic rock, pop rock, punk rock, alternative rock, she had it all. Mary sighed after Vertigo played and wiggled her finger. The Lovin' Spoonful started playing their song, "Do you believe in magic". Mary jumped up, danced around and started singing loudly to the song.

Do yo believe in magic in a young girl's heart,
How the music can free her whenever it starts
And it's magic, if the music is groovy
It makes you feel happy like an old-time movie

I'll tell you 'bout the magic and it'll free your soul,
But it's like tryin' to tell a stranger about rock n' roll, whoa

Carolyn covered her ears and ran down stairs to her dad. "DAD, I CAN'T HEAR A THING!!!!!!!" she yelled to her father.

"WHAT? I CAN'T HEAR YOU!!!!!" he yelled. "WAIT, I HAVE AN IDEA!!!!!!!!!" Carolyn and her father walked up to Mary's room and peeked into the room to see the girl dancing and singing as loud as she could to the song.

If you believe in magic,
Don't bother to choose
If it's a jug band music or rythem and blues
Just go and listen and it'll start with a smile
It won't wipe off your face no matter how hard you try

Your feet start tappin' and you can't seen to find
How you got there, so just blow your mind
-

Snape looked down at Carolyn, smiled, and whispered (loudly) into Carolyn's ear. Carolyn looked up at her father, smiled, and followed him. They were following Mary around, dancing the steps she was dancing in, and lip singing along while Mary was singing.

If you believe in magic, come along with meWe'll dance until the morning,
Till there's just you and me,
And maybe if the music is right,
I'll meet you tomorrow somewhere late at night

And we'll go dancin', baby, then you'll see
How the magic's in the music and the music's in me, yeah

Do you believe in magic, yeah

When Snape and Carolyn looked at each other, knowing that the dancing around didn't work, they just sat down on Mary's bed and watched as she sang along very loudly to her song.

Believe in the magic of the young girl's soul,
Believe in the magic of rock n' roll
Believe in the magic that can set you free
Whhhooooooaaa

Talkin' bout the magic
Do yo believe in magic
Do you believe, believe
Do yo believe, believe

Mary jumped up and down when the music started fading. She jumped up and fell right onto her bed. When she found out that she fell on someone, she stared up to see her father smiling down at her. "Daddy!" she yelled in surprised.

"Hi honey," he said. "You get better and better each day." Mary jumped up off of the end to see that her sister was with him.

"It's true," Carolyn said. Mary looked at her sister, then over at her father.

"Why didn't you guys tell me that you were in here?" Mary asked.

"We just love your singing. Can we hear more?"

"Maybe when I find out that you guys are there when I'm singing to a song that both of you hate."

"Hey, I like The Lovin' Spoonful," her father said.

"I don't," Carolyn said. "But I do like Mary's singing."
"So do I. Come on, please sing for us again, Mary. Please?" Carolyn and her father looked up innocently at Mary, who sighed and looked away. "Please?" Carolyn asked in her most babyish voice, so it sounded more like "Pwease?" instead. Mary rolled her eyes and smiled. "You know that I'm a sucker for that baby act," she said. "Oh, all right." Mary smiled, opened her mouth, and started to sing.

I know a song that get's on everybody's nerves
Everybody's nerves
Everybody's nerves
I know a song that get's on everybody's nerves
And this is how it goes

"No more!" Snape yelled. "Look, I love your singing, but I hate it whenever you start singing THAT!"

"That does get on everybody's nerves," Carolyn said.

"Oh, I gotta go get some supplies that I forgot at Diagon Alley. Do you two need anything?"

"Nope."

"Okay then. I'll see you two later. I guess I'll also pick up some lunch. I'll see you two later."

"Okay," Mary said. "Bye Daddy."

"Bye girls." He smiled and left the room. The two sisters looked at each other when they heard the front door close. "Last one to the living room is a rotten egg," Mary said.

"You're on," Carolyn said. The two girls jumped up from the bed and raced to the living room.