Birthday game ship

This little guy is a result of a birthday game. The game like most of them involving ponies has you doing something with a certain character from MLP, the game I filled out had characters for both boys and girls which was awesome. Anyway mine was me and a certain character has a foal together. Now I used my ponysona Autumn Dayz, can you guess whom I had this colt with? First person to guess correctly gets a full character drawing for up to three ocs or canon with a full background. Ready? GO!