Muscle Growth in a Sec! (Commission) (Patreon)

(No text alt versions posted in the PonyAnony Discord)

There's this energy drink that Flex Sunbringer has been financing in its production, which specifically stimulants muscles to get a boost of pump during intense workouts. (A phenomenon quite similar to how Roie Bui got his recent beach bod because of doing Bulk Up.) But for this one particular batch, some of the stimulant's ingredients were being tinkered, and Lightning Rider the Wonderbolt was also involved.He lowkey began to regret letting their other friend Cryptic try one of this batch's experimental sample, but it looks like that regret was super temporary.