You could say that you and Flossie were like Yin and Yang. She was a cute girl always wearing white or pastel colours, loving cute things and girly stuff. You, on the other hand, were wearing black, dark colours and had that dark aura around you. You two got along the best. She loved you and would do everything to support you. Despite all the differences between you both.
Currently you were playing some heavy melodies on your electric guitar while sitting comfortably on the couch in your house. Flossie was next to you, listening to your music with an excited smile on her face. Her skinny fingers were clutched on one of the plushies from her big collection. After you finished, you looked at her, searching for some opinions as she started to clap and smile even wider.
"Wowie! That was awesome!"
She said enthusiastically, her eyes full of love.