Meet Lilac a colt born with the genetic condition that makes him look like a filly.
Lilac takes this fact in stride he enjoys being treated like the girl he appears to be. His mother raised him to gentle and kind to others and try and not get upset over any teasing he may receive. He does get alot of it from Diamond Tiara and Silver Spoon however but he tries to not let it bother him. He currently is part of the Cutie Mark Crusaders and despite being a boy is one of the only ones Rarity will let spend the night with the girls. It helps that he sometimes lets her use him as a model for her dresses.
There have been a few instances in his youth where he was either dragged into mischief or up to it on his own as seen in these links.

http://thesuitkeeper89.deviantart.c.....ting-519107979

http://thesuitkeeper89.deviantart.c.....Cake-502814517

Lilac Shimmer © me
art by pembrokewkorgi on tumblr