Marx/Kamui noncon

“As for this "justice" you believe in... Prepare to receive it!”
So this is how it ends. Felled by the man you loved as a brother and had been loved in return. You close your eyes and brace for the impact.
Instead, you hear a clanging of something falling to the floor and find yourself being pulled into someone’s arms. For a second, you think that Ryouma has found you, but when you open your eyes, the person holding you is Marx.
“I can’t…” He whispers, but it hits you with all the force of a scream. “I can’t…”
He pulls away and tears are beginning to stream down his face.
“Nii-sa-“ You start to say, but your words are cut off by him pressing his lips against yours.
For a moment, your mind goes blank. Marx has certainly kissed you before, but it has always been on the cheek or the forehead, and even then, only on special occasions. Not only that, but as you got older, it happened less often. In fact, he often reacted negatively when you showed affection like that.
As you muse on the possible implications, Marx’s kiss becomes much more intimate, and he began to pull you closer. You can tell that he’s reacting to your body.
And, worse still, you’re beginning to react to his.
“I love you.” He murmurs when he finally pulls away.
“Marx-nii-san…”
You lean out to stroke his cheek, but he bats your hand way.
He closes his eyes and takes a deep breath. When he opens his eyes, they’re filled with steely resolve.
“I am going to take you back home. By force, if necessary.”
Before you can brace yourself for a fight, however, Marx pulls your armor off and throws it to the side. He pushes you against the wall so he can undo your clothes without you running away.
“Nii-san, please…” You plead with him. “Don’t do this.”
“Will you return to Nohr with me?”
“I-I can’t do that.”
“Then this is the only way.”
Once your clothes are off, he begins to undress himself while keeping you pinned against the wall. The two of you are alone, but you feel exposed and ashamed. He falters slightly as he pulls down his pants, and you take advantage of the distraction to shove his arm away.
Unfortunately, you don’t get far. He grabs your wrist, and the two of you fall to the floor. As you try to get up and run, he grabs your hips. In a matter of seconds, you feel something push itself inside of you.
You let out a scream and Marx reaches out to cover your mouth.
“Kamui, I’ve dreamed of this moment for a long time now.” He whispers in your ear. “A moment where it’s just the two of us. I wish it could have been under different circumstances, but it’s too late to change anything. For now, we’ll have to make the most of it.”
Marx grabs your chin and tilts your head toward him. His face is gentle and his eyes are full of love.
“I only ask that you please be quiet.” He whispers in a voice so tender that you realize he’s gone mad.
Marx pulls you closer and kisses you again before he starts thrusting.
“Now the connection between us will never be severed.” He pants. “Even if you run away, I’ll still be with you.”
“Marx, please…” You cry out, trying to force your body to not react. “Stop.”
He merely kisses you again.
It doesn’t take long for your body to betray you, taking pleasure in Marx’s thrusts and making you moan.
When Marx finally comes inside you, you don’t have the energy to pull away. He pulls out of you, grabs his cape, and wraps it around you. He kisses your forehead with a gentleness that you once longed for.
“Let’s go home, Kamui.”