Only When You're Ready (слэш)

Some soulmates figured it out the moment they met, their first greetings to each other being the very same words that triggered the reaction. For others, it took longer. There were plenty of soulmate couples who didn't even figure it out at the same time. Jarvis, the human Jarvis, had once told Tony that his wife hadn't spoken her words to him until they had been married five years and he hadn't spoken his for seventeen past that, when she was on her deathbed. Tony had to admit that he had no idea when his parents had spoken their words to each other, or if they ever had. But if Loki was so certain that they were soulmates that meant Tony had already spoken his words to him.