The Happy Tony Stark Fantasy (слэш)

What's a dying guy to do? If he's Tony Stark, he makes all the great decisions. But sometimes, fate has a way of making a few great decisions on her own. Tony rolls with it.
And Loki does not so much fall (okay, he totally drops out of the sky) as saunter vaguely downward.*
(*credit due to Gaiman and Pratchett, who turned that phrase memorably, also Crowley, who is memorable, but has nothing to do with this story.)