It starts as Loki accidentally stumbles in some slavery house (or something) and there are some men taking turns to rape Tony and in the mean time playing cards. They think he want to buy Tony and then there is the scene when Loki and Tony recignise each other Tony think Loki come to rape him too and try to kill himself with some tranquilizer shot which Loki found out later.
I know I read it somewhere but I cant to find it anywhere. I think it is not wery well known fic. Any clues?