Born five minutes before her twin sister Charming Affection was always close to both her mothers, even if her half-sister Cosmic Sparkle seemed to want Rainbow Dash all too herself. Charming Affection and Firefly were polar opposites, charming preferred to stay on the ground, helping Fluttershy with her animals and spending time with her friends in Ponyville, Firefly wanted to be in Cloudsdale and go to flight school just like Rainbow Dash had. Their mothers are supportive of both the fillies wants and made sure that they spend equal time with both their daughters, their daughters in turn remaining close despite their opposite personalities.

Charming affection got her cutie mark on hearts and hooves day, Firefly was too nervous to give her hearts and hooves day gift to Apple Patch that Charming affection stepped in and managed to leave the gift on the colt's desk. Seeing how happy her sister was and how happy Apple Patch was to receive the gift it made Charming Affection realise that she liked spreading that joy, she gained her cutie mark three love hearts in a circle. Princess Cadence took notice of the new Pegasus spreading love it reminded her of being a filly. Cadence offered Charming a place in the crystal castle but she turned in down and choose to remain in Ponyville.

As a teenager, she and Princess Twilight organised a heart and hooves day celebration. The celebration did so well that they did one every year after and it was always hosted by Charming Affection.