Introducing Sun Sprint the daughter of Dumbbell and Bulk Biceps. She’s an occupational therapist for the Wonderbolts and is an athletic trainer on the side. Sunny inherited her dads’ strength and pure muscle, and she tends to forget how strong she is sometimes (which results in tight hugs that leave one gasping for air or back pats that knock you to the ground). Like Bulk Biceps, she is loudly enthusiastic about most things and accidentally shouts her words. But Sun Sprint can’t help it. She’s so excited each and every day and loves to share her happiness with others.
 
Sun Sprint used to be in the Wonderbolts (after much encouragement from Dumbbell) and worked alongside Electric Spark (Rainbow Dash’s daughter). While she enjoyed flying, Sunny wasn’t too keen on the extreme competitiveness of the Wonderbolts. She preferred to just cruise along at her own speed and look at the sights. She quit not long after joining them and eventually discovered her true talent. But Sunny still loves to watch the Wonderbolts and goes to every show to boisterously cheer them on.
 
I have yet to design a cutie mark for Sunny, but her talent involves physical therapy and rehabilitation for athletes. She earned it one day when she was tending to her father, Dumbbell, who accidentally ripped his entire bicep muscle while lifting weights at the gym. He was forced to wear a cast for months, and Bulk Biceps and Sun Sprint helped take care of him during that time. Because of her dad’s injury, Sunny quickly became fascinated with medicine and how the pony body worked. She threw herself into her studies and began working on her Wonderbolt friends after their flight practice. She’d massage their sore muscles or tend to their injuries. Sun Sprint eventually earned her degree in PT and became employed with the Wonderbolts as their personal therapist not long after.
 
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