I do not own Supernatural.
"Hello boys, fancy seeing you here." Gabriel commented with a smirk, earning himself glares from the Winchesters and a puzzled look from his younger brother.
"I don't suppose you had anything to do with the werewolf attacks?" Sam asked warily.
"Nothing, cross my heart, but I did hear something rather interesting." He let the sentence hang there, but the Winchesters merely stared rather than rising to the bait. "Someone has a target on his back." Gabriel's smirk grew wider.
"Like that's anything new." Dean responded grumpily. "You got anything more than that?"
"Cupid, top priority, seems Naomi wants you put out to stud Deano, love, kiddywinks and the white picket fence, aren't you lucky?" Gabriel commented, watching their faces carefully, he couldn't help but feel a ripple of satisfaction at the concern and frustration on his little brother's face, he nearly hadn't come, after all it was hardly his concern if the grouchier brother got a slightly artificial happy ever after, but he remembered the way Castiel had looked at Dean...
"And we should believe you why?" Dean asked, though he was beginning to look around somewhat cautiously, of course that was the moment the Cupid arrived, not that the humans could see it, and everything happened rather fast, Castiel moved to protect Dean, and Gabriel flung his wings wide to catch the projectile before it could hit Castiel, more on instinct than anything else, and the next thing anyone knew Gabriel and a confused looking young woman were gazing at each other with wide eyes and the Cupid was staring at the situation with a look of horror on his face.
"Cas, what's going on? Is it here?" Dean asked, as he turned in a tight circle, hands wide as if he could fend off arrows he couldn't see. Meanwhile Gabriel approached the woman, eyes fixed on her.
"I am so sorry brother, I can fix this just don't..." Cupid began moving towards the pair, when Gabriel snapped his fingers and they both disappeared, the cupid sighed.
"You caused an Archangel to become enamoured of a human woman." Castiel spoke heavily. "And you did it trying to shoot Dean Winchester. Tell your garrison that the Winchesters are under my protection and any future attempts will be met with the full force of my wrath."
"Cas, what's happening?" Sam asked as Castiel seemingly glared at thin air and Gabriel had popped off with someone.
"The Cupid struck Gabriel by mistake, I believe he was acting to protect me. Gabriel presumably believes himself to be in love with the woman intended to be paired with Dean. It will wear off, the arrows are intended for mortals not angels, but I do not know what he will do in the meantime. I have to look for him, but he has a lot of experience with not being found if he does not wish to be, and I do not want to leave you unguarded." Castiel responded, shifting uncomfortably.
"It will be all-right Cas, you said yourself, it will wear off..." Sam commented soothingly. "If I'm honest I'm more concerned about her, she's human right? So what will happen to her?"
"The bonds work reciprocally, so that they will fade when one person dies, it may take longer, but once Gabriel has purged it from his system it will fade from hers as well." Castiel frowned as he spoke, it was an inconvenient situation.