Kingdom Hearts Leon/Cloud animalistic behavior, pinning him down and marking his skin until everyone
Leon wears his bare skin like another layer of armor, not entirely comfortable in it but too used to being uncomfortable to care. Pale skin and scars everywhere, faded and fresh like chapters to a story the man will never tell.
Cloud understands not being at home in yourself. Better than he can fathom how others are fine in their flesh. Fine enough they think they can crowd Leon, get in his space and make demands of his time just because he lets them. It stirs those dark, ugly things inside that have nothing to do with the Darkness and everything to do with Cloud and Leon.
The man is his. In the ways that matter most. What they have isn't always gentle or loving. They aren't in love, the way Cloud is in love with Aeris, they way he was in love with Zack and Sephiroth once. Leon doesn't let people who love him get too close. Just the ones who think they have a clue what love is because they don't.
It pisses Cloud off. The way Leon lets everyone who doesn't matter get close and make demands and practically serves them, but pulls his little vanishing acts on the people who do matter. It enrages him, even if he's not sure exactly why. Stirs the old, almost forgotten boy from a broken home into doing things the new Cloud wouldn't allow himself.
The rage makes him spar Leon into the ground. Beat him down over and over with his greater strength, longer reach, faster reflexes. Makes him draw blood more than once, then pin the lanky hide to a cliff wall so he can lap at the leaking crimson. Suckle ugly bruises over the cuts, up his neck and over the thin skin of a bony hip, deep throat Leon's half hard prick with bare teeth because Leon gives up then. Gives up and gives in, gripping his hair and fucking his face with screwed shut eyes.
It's not enough. Not enough to drink down the salty shots of cum spurting over his tongue. Not enough to yank the man down to the ground and pin him, hump his thigh like an animal while he tries to speak through the shuddering after shocks and the teeth over his jugular.
This is his. When he's done, when it's enough, all those people who didn't matter will know it. They don't deserve Leon. Any bit of him.