There were certain things in being THE trickster of a hidden village full of ninjas. First of all, it took skills to go against jounins and stay unnoticed. Secondly, it becomes handy in teaching the next generation of ninjas to be sneaky. The teacher who knew by first-hand experience what students were up to was difficult to surprise. Often students even avoided ending up in bad situations or injured because of Iruka's skill to notice insufficient trick plans. The third and the best part was the fact that you could keep jounins in their toes and loved ones in line. In Kakashi's case, it was both with added extra ex-Hokage mark.
Of course, Iruka's habit of being whimsical with his trickster seasons made certain additions to the thrill (stress) levels of the victims. So after the first week of the summer holiday relaxing and recharging, Iruka had got into motion with his newest plan.
Right now Iruka was having a hard time not to laugh (or more like the time of his life) while looking at his husband go Deadpool level crazy monologue. All the while walking around the apartment in his boxers. All this while being pink. From the tip of his hair to the end of his big toe. Brightest colour of pink. For one Kakashi couldn’t say that he looked like gosht. And it wasn't Iruka's fault the man used 3-in-1 hair and body wash. It might have been Iruka's fault that he timed this trick especially the night before they had planned to have a beach day with team seven's kids. Then again it was Kakashi's own habit of not looking at any mirror, not that they had many of them anyway in the house.
Also how come that person who was Hokage couldn't notice the chakra signature of his loved ones in his shampoo? Yes, in the name of bluff Iruka had made sure that his signature was in every corner of the place while "trying out" a new seal system in miniature at their bathroom. Thou, that white lie wasn't the one so far away from the truth. Like most of his adult life pranks, this also was a trick aiming to be useful in the field of ninja work. Iruka just liked to do research more… fun. To himself.
Actually, he had just given Kakashi a real solid reason to be late instead of making stories of grandmas after all these years. (In truth most of the time he just hadn't got himself to move from Iruka's armpit.) And those lies were the one main reason Iruka was still aiming most of his pranks at Kakashi. Of course, it helped that he could get away with almost anything uninjured whit his silver-haired companion. That and the fact that Iruka thought Kakashi should man up and openly admit things like they were. He was a big softie and Hokage's work had taken A LOT from him and he needed his cuddles. Period. Even the worst summer heat of man's memory couldn’t protect Iruka from being used as a human hug pillow. Not that brunet minded it. Iruka was willing to give an infinite amount of snuggles and hugs to the man he loved.
Iruka probably should sober up from his laughing before it turned to coughing and get up from the floor he had fallen on at some point. But Kakashi’s rampage around the whole house made it difficult. He had at least told the bathroom how he was going to be late, to the kitchen that Iruka was a total nut crack whip out of his head, crazy. In the study had been a lengthy monologue about how their reputation as a convincing ninja village was in danger because Iruka couldn't keep his prankster side in check even for one second and then and there was a repeating plea for Iruka to “shut up” and let him out of his misery. How he knew it was Iruka even though he could not prove it was kind of a mystery. or not at all actually. Naruto or any of the kids had not visited them for the whole week.
And no, no washing would take it away. No soap. No amount of hot or cold water. Which ones actually changed the colour many degrees. Between laughing tears, Iruka noted that as an interesting feature that should be looked out and refined for better use. Like fewer checkpoints for hospital usage. Kakashi had even tried out olive oil and vinegar to wash his skin without any success. Or wind jutsu that Iruka thought was a pretty clever tryout from Kakashi. That was the correct idea though but just the wrong jutsu system.
Kind of the best part also was that this was again in the category of real stories of their domestic life that no one believed if Kakashi tried to tell how things were. Which again wasn't Iruka's fault. Kakashi had been the wolf boy telling unbelievable stories his whole life and now no one believed his unbelievable life.
When Iruka calmed down enough, wiped the tears out of his eyes and got up from the floor. He collected their beach stuff into one sack. When Kakashi next walked past him. “Hey, the good thing is it protects against sunburn too!"
"By making me look like I have been burned!" Iruka chose to let the man out of his misery.
Iruka clapped Kakashi to his back and released the thinnest chakra hold he had ever made anything to have. The thin layer of pink powder was released all at the same time but instead of shedding to the floor - like it had done when Iruka had tested it - Kakashi happened to move fast right after the release and made the powder poof to pink clouds around them. Both men breathe it in, getting the next coughing fit. Before it had calmed down totally their eyes saw each other and made both of them laugh again, couch, and trying desperately to catch their beach bags to get out of the apartment before they breathed more of the pink dust. At the front porch of Hatake estate. They breached in good clean air.
Iruka turned to look at Kakashi and he just couldn't keep from grinning wildly. "Kakashi dear, maybe you should still get some shorts."
This time Kakashi's pink checks were all-natural.