Stuck Together (NaLu)
The real matchmakers are Happy and Plue. One day, Happy and Plue were reading when they saw a book where you get the magical string that can bind two people together for life. The only way to undo it is to say,"I love you," but you have to actually mean it. Turns out, Mira had some. So, when Happy convinced Lucy and Natsu to go on a mission, after the mission, Happy made them fall asleep. Plue and Happy pushed them together and they tied the magical red string around their wrists. When they wake up, they're in for a surprise. Find out what happened next!
Disclaimer: I don't own Fairy Tail. Hiro Mashima owns it. All I own is the plot.