On one particularly calm evening Rarity found herself immensely lacking in things to do. She had finished all of the dress orders for the week, cleaned the show room, Opal was at Fluttershy's for a weekly grooming, and Sweetybell was staying the night at Sweet Apple Acers with Applebloom. Tapping a hoof to her cheek, she remembered that twilight had asked her if she had any spare gems she could use for an experiment. Something about magic infusion. With a shrug Rarity grabbed her bag of mismatched gems and headed for the castle.
Upon arriving at the castle, she calmly knocked on the door. When Spike answered, he froze for a second as a dreamy smile crept across his face. He welcomed her inside and went to fetch Twilight, leaving Rarity alone for a bit. She noticed that Spike had left his record collection out in the map/throne room. Curious as to what dragons listen too (and a little tired of the same Sapphire Shores songs being played over and over) she floated up the closest album. "Metallonca" she read, "The Beak album". She slipped the record out of its sheath and placed it on the player. She was hooked on the first toll of the bell.
Twilight entered the room and quickly covered her ears. She had expected Spike to have more sense than to leave his music playing. What she did not expect was to find Rarity swaying back and fourth in front of the record player. She cleared her throat. Rarity stopped swaying, slowly her head turned to face Twilight. Her eyes were huge and full of sparkles, and she had an immense smile on her face. "Twilight, I bucking love this!"