This is not my best. I wrote this late at night after having class all day and studying for midterms so it’s sloppy but it’ll do.
There are so many ways I imagine Stoick finding out about Hiccup and Astrid but this is the one I chose to write.
Stoick was walking up the many steps to the Great Hall, where he was supposed to meet Gobber and a few others to discuss the winter weather preparations. He was halfway up the stairs when he heard a giggle.
He turned around and saw nothing behind him but then as he continued up the steps, he heard the same laugh again. Stoick peeked over the side and saw Astrid pressed against the stone and Hiccup pressed up against the girl. The two young Vikings were kissing.
They are kissing. Oh Thor! Finally! Stoick thought to himself as he smiled at the couple. He stood there for another few moments before he realized he would probably get caught if he stood there any longer. He continued up the steps and made his way inside the empty hall.
While waiting on the others to show, Stoick sat in thought.
When did this happen? Why didn’t Hiccup tell me?
Stoick figured that he could either be the father that flat out tells his son he saw the two kissing by the stairs or he could be the father that tries to pry it out of his son with awkward questions.
Stoick decided on the second option. It seemed like more fun.