A nine part request from  kaafan10 with Rainbow Dash; Dashie for short, and her son Ross. Why is he wearing a baseball cap? All will be answered, from a simple story. Let us begin.

It was Ross's birthday today, and on this day, his mom was gonna take him to a baseball game for his birthday. He was getting all excited, as he wet's himself just a little bit... okay more than just a little. He blushes a little, but a soggy diaper ain't gonna keep him from having the best birthday ever. After he was changed from his mom Rainbow Dash, they then flew off to the baseball game, as they join the crowd in the bleachers to watch Ross.
"I'm so excited mom! Thanks for taking me to my very first baseball game!" Ross said.
"Ain't a problem little colt, just doing my thing." Dashie said, chilling as they watched the game. After about an hour in, there was then a home run hit, as the colt toss the bat out of his mouth; which his baseball cap came off, as he grabbed onto it, threw it into the crowd and ran off, doing his signature move: The Cap Twister, for every home run. Ross say the cap heading towards him, as he reached out and caught it with his hooves. He couldn't believe that he got a baseball cap from his now new favorite colt, Cola Twist.
"Oh! My! Gosh! I got his cap!" Ross cheered.
"Whoa! Way to go champ! That's amazing!" Dashie said, as Ross puts it on and it fit perfectly on him.
"Huh, who knew Cola had a small head."
"Hehehe, how about we get some snacks after that great performance."
"I'll race ya to it mom!" As Ross flew out of the bleachers.
"Hey! Wait for me!" Dashie followed in pursuit, as she caught up with him, and they were both having fun from this amazing birthday of Ross.

Poses I used for this:
https://www.deviantart.com/mondlich.....dy-8-580227903
https://www.deviantart.com/bypanda/.....rt-1-506998461

(P.S. Sorry for the weird outlining, I made an error, but I hope it's fine)

Ross Info: If you think Rainbow Dash is the coolest pony ever in Equestria, then you haven't met the 2nd coolest pony, her son Ross. The red cap on his head is actually from a a baseball game she brought her son too, and he was a big fan of one of the players. When there was a home run, not only did he caught a baseball, but he also got a hat from his favorite player. Ever since then, he has always worn that hat on him, wherever he goes. It is his most prized possession, and if anything happened to it, he'll have a hear attack over it. His body is darker than his mom, shorter mane and has the same eye color, magenta. Unlike his mom however, he doesn't really brag about being the fastest flyer, considering his mom is the one that holds that title. But when he get's old enough, he'll win it for sure.