A/N: Cassian has My heart, but I rarely can write him as a love interest the way some people so amazingly can. When I think of Cassian, I think of my older brother. A kind, loving, and gentle person who, due to his larger size, was cast into this role of a dominating force, and Cassian embraced it. "Gentle" is my absolute favorite prompt from this week, and I had planned to keep this to myself, but I have so many little fics and drabbles already locked away that I wanted to make sure anyone else who sees Cassian as the safe big brother also had something to read.. So enjoy 💜
Warnings- implied injury and unedited (you know the best warning)
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Reader is the youngest Archeron sister, and after being made, has begged Rhysand to allow her to have combat training. Hand to hand doesn't go as planned, though, when Azriel gets asked to spar her so Cassian can watch and take notes on her progress.
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Your back hit the training mat with a loud thud. All you could do was blink the shock from your system as Cassian ran over to your side separating you from Azriel. The loud cough and gasp you released as your body screamed for oxygen had you rolling to your side.
"What the fuck, Az?" Cassian was in shock. His voice was muffled to your ears as you tried to focus on calming the burning sensation in your lungs.
"She was doing so well, I just-" Azriel sighed at the look Cassian shot him, "I got caught up in thinking it was someone more experienced. I thought she could handle it." Azriel's own guilt hit you instantly as he watched you curl up on the ground. "Y/N, I am so sorry. I didn-"
"We haven't even begun to discuss what to do when someone is about to throw you or slam you down. She has only trained for a few weeks, Azriel." Cassian moved to you, kneeling on one knee at your side as your body continued to try to breathe through the pain in rushed pants. "Y/n, are you okay?" Cassian's rough hands braced your neck softly as he sat you up and leaned you against his thigh. "Arms above your head, baby. You knocked her breath straight out of her." Cassian moved you again, trying to stop you from decompressing your chest and stomach, "Next time, push your body weight the opposite way he is throwing, y/n. Do not let Azriel rag doll you." Azriel scoffed at the comment, kneeling down next to you on the other side and holding your hand in his.
Cassian pulled you in closer to him with a glare. He was softly rubbing his hand up and down your spine slowly to coach you into deep breaths. "Breathe sweetheart, you're okay. In through your nose, out through your mouth. There we go, just like that." Cassian smiled brightly at you as your breathing became more regular. "Rhys and Nesta are going to kill you." He looked at Azriel with a serious expression. "Ness already is upset we are forcing her to train. She might actually steal a knife and stab you."
Azriel sighed deeply. "That would get Nesta out of her room at least." They both watched as you cracked the smallest smile before leaning into Cassian more. "I think she's done for today. That will leave a nasty bruise. I'll have one of the twins go to the room to rub salve on it."
Cassian nodded in agreement. Your eyes met the upset ones of another male as Cassian began to speak again. "I'll carry you up to your room, y/n. Az, can you clean up here? I want to talk her through what she did well and wrong. Y/n, Please don't tell Rhys about this.."
"He already knows," you whispered softly before pointing to the doorway where your sister's husband stood. His hands were tucked into his pockets as he studied the scene before him. Anger graced his face as he took in your disheveled, messy braid of dark brown hair, your red face, and your soft pants from being unable to take a full breath yet. Cassian chuckled lowly while looking between Rhys and Azriel. "Be nice, Rhys. I asked. It was-"
"I told Cassian to train you," the high lord said sternly. "Strictly for this reason. Now I get to tell Feyre you were hurt tonight when we speak."
Azriel was the first to turn as Cassian gently picked you up, supporting your knees with one of his arms. "Let's go get you a bath, princess," he whispered gently into your ear. "They're about to fight and it might get ugly. Our dear Rhysie has some pent up anger that he does not want to admit to, and Azriel is always more than happy to fight him."
You nodded, arms going around his neck so you could tuck yourself further into his chest. "Why did he want you to train me?"
"I would never throw you this early. Soft gentle movements until you have more experience, more balance, better strength. Az didn't want to baby you. Rhysand and I did. Because. Well. You are the baby." His voice was soft as he reached the room you and Azriel had begun to share since being made.
He continued after opening the door. "Azriel felt that was unnecessary. That you were capable and babying you after you begged us to ensure you never felt helpless again was unfair."
"And he won because of the bond?" Cassian nodded to the question as he set you down on the bed and Sat beside you.
"We compromised. I told him I would train you with progress updates every two weeks where he was involved. That is why he was there today. To spar you while I watched to see what I needed to fix, what we could progress on. I will be talking to him, though. You were not ready for that level of hand to hand. He needs to be more gentle with my baby sister."
Cassian's hand continued rubbing up and down your back as he held you. "Your footing was wonderful. You have made so much progress in the past couple of weeks. Feyre would be proud." He smiled down at you, then switched to a serious face, "You had a few strikes we need to work on, and we need to teach you how to get out of a few holds again. You did very well, though. I am very happy with your progress."
You smiled against his chest. "It must be the good, gentle teacher."
Cassian hummed as he placed a kiss on your head and pulled you in for another warm hug. "Or the aggressive dedicated student."
