A Trip in a Foal's Hooves

Shining Armor has spent three weeks as foal and spends his last day as a baby with his wife

This Story takes place after the episodes "Royal Canterlot Wedding part 1 and 2"

Not long after his wedding Shining Armor was turned to a foal by Queen Chrysalis and for three weeks had to endure the emberassment of being a foal. Finally Twilight had created a cure so Princess Cadance decided to take Shining out on one last walk around Canterlot before he becomes an adult again.