Alright, so I have this fluffy headcanon for Hawks thats also a lil angsty.
So i think he would be very soft and vanilla with his s/o. Like we all know that Keigo hero facade is just that, a facade. So, he would never act like that around someone that he truly cares about.
At first glance, there may be a lot of assumptions that Hawks is super freaky and a playboy. But all Keigo wants is to be loved. Keigo is a sensitive, insecure, and traumatized person. He didn't grow up in the most idyllic of circumstances. So, as someone who has experienced various forms of abuse and hardships throughout his life, he would NEVER do anything like that to you. Even if he was just pretending or role playing.
What he goes through as a hero, messed him up way more than he would like to admit to you. He doesn't want you to see him for the weak and scared man that he thinks is, but he also doesn't want to pretend around you. And that's why all he ever wants to do is be close to you or wrap you up in his arms constantly, whether just cuddling or during more intimate times. He thinks that if he always keeps you around then you have to stay. If he sticks by you then he can keep you safe with him at all times. Hell, he never wants to resort to begging, but he would do it in a heartbeat if it was to get you to always stay by his side. The last thing he wants to do is lose you.
He's not sure if he'll ever be able to recover from the loss of someone he has realised he can never live without.
Many view him as a ‘Flirtatious Man’ and someone ‘Easy to get’ by his laidback and flirty facade he puts up in order to be liked/loved by the public eye.
But I feel that once he arrives at the comfort of him home, he pulls that mask off his face to reveal how broken and depressed he really is.
He isn’t Hawks, he is Takami Keigo.
He never experienced what true love is due to his rough beginnings, and he has lost all hope in finding someone who would truly love him, for himself and not his hero self.
He wants to experience what a date feels like with the person you love, because I think he is closet hopeless romantic and likes to read romance novels, watches romantic movies/series, and likes to daydream a lot while laying on his bed, staring off into space up at his ceiling.
He imagines going on a picnic with the love of his life, eating the food they both made, with genuine laughs and smiles shared between the two of them.
Going on strolls into the park and go sightseeing, playing a small game of ‘eye spy’ with him teasing them and tickling their sides during their walk to hear their laugh he dearly loves.
He also dreams of simple domestic stuff with a romantic partner, like cooking together, dancing around to the music in the living room while cleaning up their shared home, watching a TV series together in each other’s arms while snacking away.
At night to hold them close to his chest and wrap his wings around them to keep them safe from harm, while cupping their cheek to admire their peaceful selves sleeping soundly, at the same time admiring their beauty.
But he knows that what he is thinking is only a fantasy, and with his career, it is almost impossible to have a love life, as he brings a hand to clean off the tears that escaped him.
But then you came into his life and he felt it was possible to have a love life, and he knew he wants you to be by his side.
You showed him what true love is, and he got to make his dreams into a realty alongside you, as his lonesome home now felt like an actual home when you receive him in your loving embrace followed by a passionate kiss after his work shift has come to an end.
You both are now laying in bed, with your head resting in his chest hearing his heart beat, your arms wrapped around his strong figure, snuggling closer to your man.
He did the same in wrapping his strong arms around you, along with surrounding you with his fierce wings, bringing you comfort and security at the same time.
He then cups your cheek and begins to admire your peaceful state and natural beauty, as he kissed your forehead with a tear escaping him.
This tear isn’t of sadness, it means he feels overwhelmed with love. He is over the moon to be able to experience what true love is. He is blessed to have you in his life, and will do anything to continue having these precious moments and make more memories alongside you forever.