Hiccup worked on his project. He had let go of the photodentic wing when he fell. Maybe, if he made a saddle of some short to help ride on Toothless' back AND hold the tail fin open. He knew exactly what to do. THe next day, he showed Toothless the saddle he made. Toothless decided to have some fun with his brother. "Why don't we play catch the dragon first?" Hiccup lowered the saddle, confused. "What? Toothless, what do you'" before he could finish, Toothless knelt playfully and raced off, laughing.
Then Hiccup got it. "Hey, come back here!" He laughed, throwing the saddle to the side, running after him. The pair played until it was time for Hiccup to go.