Participation Credit

After a few weeks you go into the sex education class. You see Zatanna showing everyone how to properly use a dildo, sliding it into her ass. She sees you and invites you over to show a demonstration of how to properly ride a cock. You agree and lay on a table, as she hops onto your cock. She rides you for a few moments before getting off. She then offers all of the students a ride for extra credit, and house points. A few students murmur until a single gryffindor student stands up, to get the extra credit, and the points.