(Hiccup and Elsa are boyfriend and girlfriend which will be end because he wants to marry her. But a unexpected surprise shows up)

Elsa was flying her dragon as Hiccup was watching her smiling he blushed as she would pass by "So beautiful."
He said as he then used his powers to make a heart "Aw he's so sweet." She said doing a dive "Hiccup!" She waved as he waved back. "Elsa!" He used his fire power to make her Name in flames.

She landed safely and got off smiling "Aw babe that was so sweet." She kissed him. "Just like you." He smiled and stuck his arm our and in his hand a fire heart was in his hand "My heart burns for you my Viking Queen." He said as she giggled then fishlegs and Snotlout came on their dragons "Hiccup Elsa fire in the village near the docks!" They rushed over seeing flames being put out. "Elsa! Our home was on fire but it's out." Said Jack her older brother. "We need to investigate on what's happening. Fires happened this time of year because of dry season but.. This fire happened as if it was a windy force but almost like someone did this."

Hiccup saw a woman in the crowd she was smoking "Hey miss are you Ok? Your smoking." "Stay away!"
"Whoa!" Flamed came from her hand once Hiccup deflect it he managed to get it off her since it was on fire.

He gasped "A-Anna?...sis?" "Hiccup?"

Astrid rolled her eyes "Oh great another fire troll." "Hey watch it!" Said her dad. "My big brother!" "Aw my Hiccup found his sister."
Said Ruffnutt. "Hey where were you all these years?" "Well um I've been here with Elsa my girlfriend." She smiled and hugged her "Uh hot hot!" "Oh sorry I can't control them all the way but my bro got his powers first."

"So let me guess like your brother you came on our island which is our home and burn it to the ocean?" "Astrid you will watch your mouth!" Scold her mom as she glared at her. "I'm sorry your highness." "Highness?" Astrid said. "Uh yeah Astrid if you didn't know Hiccup's family give us money so we do trades which is how we survived all these years and your gonna screw it up for everyone."
Said Snotlout.

Anna hugged her brother again as he hugged her back.

Later

Hiccup was talking with his sister and she told tales on how she washed up on the other side of Berk and surviving the dragons, finding food and shelter and mostly staying hidden not knowing who was friend or foe.

"I see I was like that once but Elsa taught me everything from fishing and hunting man she's a dream. "

"I can tell by the way you talk about her non stop since we reunited." "Really?" "Yes and I can tell you have something else on your mind that involves her  am I right?"

"Uh..yes I um.. I want to ask her to marry me I mean I leave hints, clues, and so many things... Little notes." "Hiccup we're not at home anymore she's different you can't tell her you want to marry her by a clue and note you have to tell her yourself..by heart and how you deeply and truly feel about her." "Yeah your right sis thanks come with me."