Baby Lovers Like You and Me (Never Say Die) (слэш)

The Avengers. They'd found him frozen in the ice, told him he was immortal, of all things. And with the way he'd lived through seventy years deep in the Atlantic, he found himself inclined to believe them. They'd also been very… convincing.
Without question, they integrated him into their unit - The Avengers, a secret team of unkillables seeking wrongs around the world and making them right, supported and housed by an enigmatic billionaire named Tony Stark. Their immortality, it seemed, was a secret to everyone but him.