Heres an AU idea Evil Ruby seduces Jaune to join the dark/grimm side
Jaune stood stoically as he felt the woman's hand glide over his chest, refusing to see her as the sweet Ruby he once knew. Her skin was pale, whiter then snow and her once sliver eyes were now black.
Ruby:Why... why do you still resist me?
He doesn't answered, only grunting as she shove him to the ground and straddles him, staring deep into his eyes.
Ruby:Aren't you tired? Tired of fighting for a world that will never appreciate you?
Jaune:It's my duty. The real Ruby-
She interrupted him by grabbing his cheek between her fingers.
Ruby:The Huntress and Huntsman were useless. Atlas was useless. Salem was too weak to take actual Join me Jaune. Help me take over the this world for true peace.
Jaune falters a bit, a bit unsure. Ruby saw this and couldn't help but smirk leaning closer to jaune still their forehead were touching.
Ruby:You said you love me. That you do anything for me right. An arc keeps his word. So join me. Help me take this world by storm.
She kisses him, and Jaune doesn't push back letting himself be taken by Ruby. The world wouldn't survive long with them two of them working together.
(Sorry it took so long dude, hope it's to your liking.)