Those not versed in wolf body language might think that Fenris was angry at this exchange, but Steve would instinctively know that Fenris was pleased with his answer and considered it a point in his favour. Life was a fight. Mortals seemed to have forgotten that with their self made luxuries, but his kin would never forget. To stop fighting was to die.

"There lies the issue."

Fenris would not be on Midgard biting random mortals if he had a choice in the matter.

"I became separated from one of my kin during travel, and I have not the means to return to Jotunheim alone. There is a way, by asking a boon of Asgard and its gatekeeper, but my mother would not thank us for that. The prince of Asgard is besotted and, though I believe my mother will wed him in time, to give him hope that he possesses the favour of my siblings or I would not be wise."

Hopefully Steve is following this, because Bucky just looks wary as hell and Bruce's brow is furrowed in confusion as he tries to follow this already complicated family tree. He murmurs to Tony as he steps close. "Asgard and Jotunheim, they're realms from Norse mythos, this-- this can't be happening."