Crossbreeding Assistance 4 - Teacher creampies elves and dragon girl till he falls asleep

In recent time the birth rate of certain races was drastically low, and due to this the government decided to intervene. They devised a new system where a computer would assign people to each other with the only goal being to conceive and have children. Unfortunately for a certain teacher, he was assigned a student of his.. and not just any student either, this student is a blonde elven princess named Iris.