Argyle Starshine & Velvet Starscout is the twin offsprings of Princess Twilight Sparkle & Star Tracker. They were born just before the attack of Opaline Arcana. Twilight not wanting her family to be harmed, sent them into the future, and the spell worked. But Star Tracker was ageing more than twice as fast as a normal pony. And by the time the 2 twins had gotten to their adulthoods, Star Tracker had been dead for years. The Twins having been growing up alone with Star Tracker found a town called Maretime Bay. Once the 2 built themselves a house there, they decided to become parents. And a years after that little Sunny Starscout was born.