Work Text:
Kitaro didn't know when it had started, now every time he saw Mizuki he felt strange.
He couldn't explain the feeling he got when Mizuki stroked his hair, smiled at him, made him breakfast. The only thing he knew at the moment was the need to stay close to Mizuki.
Kitaro was reading a book when Mizuki came home from work. His heart raced when Mizuki started taking off his shoes and suit.
"Kitaro, I'm home."
“Mizuki-san, good evening. You’re a little late today.”
"I was talking to a coworker."
Kitaro felt anguish when he heard Mizuki say that he was with a woman. He wondered if she was a girlfriend. He didn't want Mizuki to date, he thought about how that woman would take up more and more of Mizuki's time, just like what happened today.
“Kitaro, I’m going to bed early today because I’m really tired.”
“Okay.”
Kitaro stayed in the living room watching TV, sleepless, thinking about the possibility of Mizuki finding a girlfriend.
A few minutes later, the phone rang. The call was from one of Mizuki's coworkers, asking him to deliver a message to the man. Kitaro went to Mizuki's room to deliver the message before he forgot.
He walked into the room to check if Mizuki was still awake.
"Mizuki-san?" Kitaro said as he opened the door to the room.
Upon entering, he realized that Mizuki had already fallen asleep. Something inside Kitaro urged him to approach the bed.
The older man was sleeping in only his pajama shorts, his chest exposed to Kitaro's eyes. The boy had seen Mizuki shirtless before, but now was different, he had never stopped to look at Mizuki's body like this.
He knew there was nothing else to be done there, but he couldn't stop watching him. Mizuki had such a calm, relaxed and... vulnerable expression.
Kitaro sat on the edge of the bed. He looked at Mizuki's lips, wondering what the texture of his lips would be like. The boy brought his hand up to Mizuki's mouth and touched his lips, they were soft as he imagined. His heart beat faster as an idea crossed his mind: tasting Mizuki's lips.
Realizing that his adoptive father was fast asleep, Kitaro kissed Mizuki, giving him a light peck. The boy blushed, not believing what he had just done. It was the first time he had tasted someone else's lips, and that person was the man who had raised him since he was born.
He knew it was wrong, but he couldn't resist. Kitaro moved his hand to Mizuki's chest, feeling the large, firm breasts. He continued by lightly rubbing the older man's nipple. A shiver ran down his spine when he saw Mizuki's nipple harden at the touch, letting out a small noise in his sleep.
His touches were affecting Mizuki, he wondered if Mizuki was sensitive there, if the stimuli made him have wet dreams, so many thoughts ran through the boy's mind.
He ran his tongue around Mizuki's nipple, feeling the man squirm slightly with the stimulation. A bulge began to form in Mizuki's shorts, which aroused Kitaro's desires. Now he was sure that Mizuki was sensitive in that area. He wanted to suck it, nibble it, see the expression of pleasure that Mizuki would make. Kitaro felt his own penis throbbing with excitement just imagining doing that to him.
His pleasure was interrupted by a more abrupt movement from Mizuki, his heart almost stopped at the possibility of the man waking up and finding his own son with a hard dick licking his nipple.
If Mizuki found out what he was doing at that exact moment, it would be catastrophic, their relationship would change forever. The idea of Mizuki hating him made him stop what he was doing, he left Mizuki's room before the man woke up.
Kitaro locked himself in the room. That night would be long for him, his right hand would have double the work tonight.
