The prompt for this was "How the rest of ST_Q lost their 'everyone gets saved once' from Raven."

Qrow

Raven broke into the clearing where she and her twin had made camp and found exactly what she'd expected. He was surrounded by Beowolves, and they were overwhelming him. Even as she cut down the first one in front of her, four of the Grimm attacked Qrow at once, and his Aura shattered. He collapsed beneath the weight of the Grimm, struggling in vain against them.

Raven sighed and returned her katana to its sheath. With the flick of a switch, she changed out the blade for a different one, and slowly drew the sword again.

It was over in an instant. The Grimm were dead and her brother was mostly unharmed. Raven stood over his prone form and sneered.

"You were crying." It wasn't a question.

Qrow didn't look her in the eye when he answered. "Yeah, maybe." He knew he couldn't lie to her.

"Weak," snarled Raven. She walked away from her brother to see what could be salvaged of their camp.

Qrow scrambled to his feet as quickly as he could. "Our parents are dead!" he screamed. "And I'm weak for mourning them?"

Raven whirled on her brother and slapped him across the face. He shrank back from her wrath.

"Tears bring Grimm!" Raven shouted. "We'll be dead too if you can't get your emotions under control!" He wouldn't look her in the eye. She calmed her voice before continuing. "I'll fight alongside you whenever you need it. I'll watch your back, and you'll watch mine. But if you ever need to be saved like this again, brother, I'm going to let you die."

Raven went back to fixing up the camp, letting her words sink in. A part of her wanted to forgive Qrow and take back her promise. He was only twelve after all. But she was no older, and she had never shown such weakness as this. So this would be her rule now. No one was worth saving twice.

Tai

Two more Ursae closed in on Raven and were cut down just as quickly as the last seven. She cast a quick glance around the cliff side forest where the other three members of Team STRQ were fighting off the Grimm. They were outnumbered, but so far had managed to hold their own.

That was until Tai tripped. Two Boarbatusks had charged him at once, and he'd been forced to take a step back when he blocked them. His foot caught on a root, and he'd tumbled over backwards off of the cliff's edge, the two Grimm falling with him.

Raven reacted immediately, transforming into her namesake and swooping after him. She tucked her wings in and dove, reaching him before he'd fallen more than a few meters. Transforming back into a human, she reached out and grabbed his hand. At the same time, she dug her katana into the cliff face, slowing and eventually stopping their fall.

"Whew!" shouted Tai. "That was a close one. Thanks!" He smiled that gorgeous smile at Raven, and for a moment she almost didn't mind having to save him.

Almost.

"Don't expect such kindness again." With that, she slowly pulled them back to the top of the cliff, where Summer and Qrow helped them up. The Grimm were finished by then.

As Raven strode away from the edge, Qrow approached her.

"That was me," he muttered. "My Semblance made him trip."

"So?"

"So don't blame it on him."

Raven turned on her brother, and he flinched away as if expecting a slap.

"I've lived under the pall of your Semblance since you unlocked your Aura ten years ago. How many times have I tripped off the edge of a cliff?" Qrow didn't answer. "That's what I thought." She kept walking, leaving her team to catch up. As always.

Summer

Tai rested a hand on the wall next to Raven's head. He leaned over her, smiling that megawatt smile of his.

"So? What are you thinking?"

Though she would never admit it, that sultry tone in his voice made Raven want to melt. She was about to grab him by the collar, drag him into their dorm room, and not let him out until she was finished with him, but then she spotted Summer approaching from the other end of the hall. The diminutive team leader stopped when she saw them there, faces mere inches apart, and a hurt look crossed her face. She controlled it quickly, but Raven had seen.

"Not tonight, Tai. I have some work to catch up on."

Tai backed off. He was visibly surprised and obviously disappointed, but he would never argue when a lady said no. He let himself into the dorm room while Raven slowly walked over to Summer.

The cloaked girl stared in shock. She was about to speak when Raven cut her off.

"I saved each of their lives once, and I don't intend to do it again. You I'm saving from heartbreak, or at least giving you a chance to do it yourself."

"What?" whispered Summer.

"I'm giving you until tomorrow to make Tai yours. He's right in there, alone and frustrated."

"But…but he likes you…not me."

"This is the only chance I'm ever going to give you," answered Raven evenly. "If you waste it, that's on you." She walked past her team leader, unable to keep a smirk off her face.

Raven stayed out of the dorm the whole night. She managed to keep Qrow away as well, happily distracted by some fake IDs and a trip to Vale. If she was going to do this for Summer, she wasn't going to half-ass it.

She and her brother returned to Beacon for breakfast in the cafeteria the next morning. Raven watched the door, and eventually Summer entered the room, alone and unwilling to look her teammate in the face. Raven knew that she had won.

She smirked as she imagined how the night had gone in the dorm room. She thought of Summer and Tai, each sitting silently on their own beds. Her team leader must have spent the night warring with her shyness and fear of rejection, hating herself more with each second wasted. Finally, Tai would have fallen asleep, likely dreaming indecent dreams about Raven, and Summer's heart would have shattered with the realization that she had given up her only chance.

Then there was the even sweeter possibility that Summer had worked up to courage to confess her love to Tai, only to be rejected, but Raven knew this was far less likely.

Raven didn't think of herself as cruel, and she didn't generally enjoy watching her teammate suffer. But this had been a matter of pride. Bad enough that Summer had been chosen as team leader over Raven, then the girl had the gall to beat her in a sparring match two days ago. So she offered Summer a chance to win Tai's heart that she knew the girl would be too timid to take. Raven had established her superiority in a way that a simple rematch couldn't undo.

Tai was hers now, and she planned to take full advantage of the handsome boy who was completely smitten with her. They had almost two years left at Beacon, and in spite of herself Raven was considering staying with him even after graduation. And having her fun with him would be all the more satisfying knowing that Summer would be watching with envy the whole time.

And now they'd each used up their chance. Raven would fight alongside them for the rest of their time at Beacon, watching their backs while they watched hers. But she wouldn't go out of her way to save them, not even Tai. Raven owed them nothing.

When I wrote this, I honestly felt like I might have gone a bit too far. My feelings on Raven are mixed. I definitely don't think she's a good person and don't buy into any of the "She didn't want to leave Yang" theories. But I don't necessarily think she's a complete monster either. Feel free to let me know if you thought I made Raven a bit too despicable.

And if you're wondering, no, Raven didn't even consider the possibility that Tai would pick Summer over her.

Thanks for reading! This is the last one in my backlog. From here on in it'll be one a week, and only if I feel like what I wrote is worth saving. If you want to see more, stop by r/RWBY on Wednesday. There are a whole bunch of talented writers who throw themselves at every prompt we're given. I have yet to see a week that didn't provide at least one good laugh or else some serious feels.