Nico goes to Comic Con with his friends, cosplaying Bucky Barnes. It's fun until he sees a genderbend Avatar Korra cosplay. The boy is very distracting (that shirt shows off arms nicely), causing Nico to run into a wall. Or three. But who's counting? Percy is, because he grows increasingly worried for the clumsy Winter Soldier. Or: Cute dorks cosplaying. Nico/Percy slash Nicercy

When Percy turns 12, he gets a dogboy from his mother as a companion. The puppy's name is Nico and they soon become best friends. When Percy turns 16, he gets his first kiss from Nico and they become boyfriends. When Percy turns 18, Nico and Percy share their first time and Percy will forever be grateful for the present he had gotten when he was 12. dogboy!Nico/Percy slash Nicercy

Nico works all the time. His worried sister Hazel suggests that he should get a pet, so his apartment and life won't be so empty. She herself owns an adorable catboy named Leo, thus pushing Nico to get himself a kitten too. Nico gets two kittens, because there's this mated pair that really catches his eyes. Nico/Jason/Percy slashy threesome