A…very long overdue comm by the talented Rex-equinox! of Celestia becoming a handsome looking stallion version of herself known as Prince Solaris from a gift from Luna! and he shall take it in stride!
Celestia's anxiousness began to skyrocket as more of her body began thickening, becoming less and less dainty with her chest being next. Her shoulders in particular began to cramp and ache as they began to space apart her front legs, becoming more broader as the upper parts began bulking out too to match up with the thickness of the forelegs.
If she was a human, her breasts would've shrunk and deflated back into the chest, but now…she now was sporting a large stallion-esque physique like an aforementioned red pony! She certainly looked barrel chested!