1 Work by Goda in The Avengers (Marvel Movies)
For the prompt: A/B/O AU (but where Alphas/Betas/Omegas have equal rights and there is no obvious prejudice). Tony is Steve’s Omega. Newly mated pairs experience feelings of possessiveness, protectiveness and horniness. But the serum enhances it. Cue Steve trying to keep Tony locked up in his room protected by his shield while being embarrassed about the whole situation, and Tony being amused by it.