Lamcost

Lamcost is the slash ship between Nate Lambert and Jake Pentecost from the Pacific Rim fandom.

Canon
Nate is shocked to see Jake back at the Defense Corps. Jake dryly asks how Nate is doing, and he tells him to call him Ranger Lambert. Jake asks if he's joking, and Nate responds that they're on a military base, he should remember how it works. He then tells the girl Amara to get settled in, and starts leading the way. He explains how protocol works for training to Amara, who aks which of the Jaegar's are his. Nate looks over at Jake and tells her it's Gypsy Avenger. Jules shows up who Jake starts to hit on before getting interrupted by Nate. He tells him to keep his eyes forward, and starts to lead the rest of the way to the cadet rooms. Nate introduces the cadets to Amara and Jake. He asks if Jake has anything to add. He doesn't. At least not anything Nate wants them to hear. They get Amara set and both leave.

Fanon
Some were shipping the two before the film was even released. Post film many were shipping them more. Many noted Jake commenting on Nate's looks throughout the film, and how their previous relationship was talked about. There are those who thought they were fighting like bitter exes, and like to explore that aspect in fic.

On AO3 it is the most written ship for both characters. It is also the fifteenth most written ship in Pacific Rim tag.

Fandom
AO3