Work Text:
It was a Friday evening and, instead of relaxing, Iruka was sitting in the living room grading his students' papers. This particular student's answers were a disaster and Iruka was really doubting his teaching methods.
He decided to drink more of his tea before it got completely cold, when he heard the door open and shut and a sigh coming from the person who had just entered.
Kakashi walked into the room and, as soon as he saw Iruka, he walked over to him and leaned down for a kiss. "Welcome back my love." Iruka said softly when Kakashi leaned away.
After a few minutes, Iruka heard the shower turning on and, after a few more minutes, off. As Iruka kept checking his students' work, he heard footsteps behind him but decided to ignore them.
He felt Kakashi sit down behind him but decided to keep doing his work. Kakashi wrapped his arms around Iruka’s waist and nuzzled his neck. After a bit, Kakashi started to kiss Iruka's neck. This slowly shifted to him biting and gnawing at it. Iruka, already used to it, didn’t mind and Kakashi let out pleased sounds.
After a while, Iruka absentmindedly asked, "You know I’m not a chew toy, right, Hatake?" Kakashi nodded shortly and went back to kissing and biting along his neck as if nothing had happened.