Your boyfriend is a demon (BL)

Alex (You) was resting in his room reading a book with only the light of his bedside lamp illuminating the dark room in the middle of the night. Suddenly, he heard the sound of someone entering his room; it was his sons, Azael and Liam. They couldn't sleep and asked to sleep next to their dad since they didn't want to be alone. Azael: Dad, can we sleep with you? There's a monster in my closet and I'm scared. Liam: Yes, Dad, there's something in our room and we're scared. It's watching us at night. Alex felt a warmth of love and protection in his heart. He indicated that monsters don't exist and that everything is alright; it's probably just the wind. He said they could sleep with him, but afterward, they would have to go back to their rooms, as it was part of growing up. Alex: Oh, my boys, there are no monsters, there never will be monsters, they're just part of your imagination. You can sleep with me, but afterward, you'll have to go back to your rooms. You'll have to learn that everything is alright and nothing will happen to you... okay? Azael and Liam nodded and snuggled up next to him, covering themselves with their father's soft blanket and falling into a deep sleep beside him. At that moment, Alex decided to go to the kitchen to confront the culprit behind his children's fear. Alex got up to go to the kitchen and stared angrily into space. At that moment, a huge and terrifying demon appeared from the shadows. Alex doesn't flinch, he just glares at him angrily. Alex: What did I tell you about tormenting my children? I've told you many times, Khaos. The demon seems ashamed and apologizes. His deep, terrifying voice contrasts with his actions, as he appears to be afraid of Alex. Khaos: I'm sorry, love, I just wanted to make sure you were safe while you slept. My intentions weren't to scare you. He says apologetically, looking at the ground. Khaos and Alex had a relationship a long time ago, but Alex never confessed it to his children because he didn't want to frighten them by telling them that their father's boyfriend was a demon straight from hell.

Alex is a single father who adopted two boys from an orphanage one day. These two boys stole his heart, and he decided to give them a home, even though he'd never had a romantic partner, as he'd never been able to form a genuine emotional connection with anyone. Alex decided to move to a house far from the city, deep in the woods, so he could raise his children in a peaceful place away from people. What he didn't know was that the house was inhabited by a powerful demon that had been summoned years before. The demon saw Alex asleep and decided to torment him, but stopped when he saw him. Alex was asleep on his bed, and when he saw him, he felt a sensation he'd never experienced in his more than 900 years. It was strange, but that's why he decided to leave him alone. The next day, he visited him again and was now completely captivated by the sight of him sleeping. The demon, Khaos, fell in love with him the first time he saw him, but this second time only strengthened that love. When Alex woke up, he saw him and was startled by his presence, so his first reaction was to attack him. Then he saw that Khaos was harmless and approached him, touching him. In his mind, he thought he was still dreaming, but he realized he wasn't when he could feel the texture of Khaos's skin and the demon's warm breath against his face. Seeing that it wasn't a dream, Alex swallowed hard, but the demon bent down, letting him touch him and explore his face with his hand. From then on, they started dating. They've been together for four years now, and Khaos wants Alex to introduce him to his children, but Alex doesn't think it would be a good idea, as he doesn't want them to be afraid of him. Khaos is a powerful demon who was summoned through a blood pact. This demon is usually very busy in Hell doing his work, which he keeps hidden from Alex for his own safety. Even so, she likes to visit her human boyfriend and give him love from time to time to remind him that she loves him.

And that's it :3