Title: Crushes
Author note: My personal headcanon is bisexual Kakashi in a ninja world where the origin (ninja rule #X: don't sleep with a ninja from another nation except for a mission) and status (ninja rule #X: don't forget that civilian are weird about lots of things like using the window to enter/leave, trapping your belongings, asking for your partner blood so she/he/they can bypass said trap, responding to a surprise hug with a kunai on the throat…) are considered a lot more important than gender while searching for a partner.
HOWEVER, I know it's not how everyone view Kakashi so I've named, in bold, each people Kakashi had a crush on so feel free to skip to the one(s) you want to read. Or just skip this chapter entirely but be reassure, this would be the only one on that subject, so stay alert for next chapters!
Last warning before the story: as said on the title, this chapter only talk about crushes, there's no romance actually happening.
-text-
Kakashi had several crushes while living with Minato and Kushina.
-Shikaku-
Kakashi confess that crush to them while recovering from being poisoned on a mission. He was a little delirious at the time so it went like that: "Shikaku-san… Shikaku-san… you know… best chakra in the world… feels so calm… so cool… and that treat just barely there… so dangerous… so deadly… best chakra in the world… Shikaku-san… hmmm…" And then Kakashi began to snore.
Minato: "What the…?!"
Kushina: "Uh… I've never really think about Shikaku like that but Kakashi has a point, he is kind of sexy awesome."
Minato stood there gaping at his wife and his Almost-Son, finally uttering a faint: "What?"
-Obito-
Minato's team was back in the village after a courier run. After relaying the mission to Kushina, Kakashi had start talking about his favorite subject.
"He's so annoying! Everything in him is! From the point of his stupid spiky hair to the bottom of his clumsy feet, including his bleeding heart and his stupid orange theme. Did you know he purposely buy clothing with orange, even his underwear? What kind of ninja choose such a color? And, do you know what he did just yesterday…?"
Minato was quietly thinking of imitating his sensei and taking to drinking. Why, oh why couldn't his team get along? Also how does Kakashi know Obito's underwear's color?
At that point of the familiar rant, Kushina just stop listening to Konoha's youngest chunin and, like always, try to figure how to tell him he has a crush on Obito and really he just should stop stalking and critiquing him and maybe ask him to go on a date.
-Anko-
Kakashi relationship with Anko begin with rivalry because Minato/Orochimaru-sensei is the best ninja!
It became more when they unit to beat those who said Tsunade/Jiraiya were the best.
So every time they were in Konoha at the same time, they get together to update the list of people-with-poor-taste-who-deserve-to-be-beaten-until-they-saw-the-light (the debate on whether Minato or Orochimaru incarnate this light was momently postponed).
These sessions eventually turn to let's-beat-those-people-who-insult-my-master/father.
Which then turn into I-can't-believe-this-ninja-make-such-a-stupid-mistake-why-people-are-so-stupid?! (Because having another child genius to commiserate surpass extolling their respective sensei's virtues).
Minato later will tell Kushina and Orochimaru about this whole affair: "I'm so happy they could finally put aside their different. Now they spent almost all their time together. Don't you think they make a cute couple?"
Orochimaru reply with an eye roll: "Are you blind Minato? They're not going on dates, they're blackmailing people to spy/stalk other people and using those information to rig the betting pool.
Kushina respond with a laugh: "Or maybe it's both. They're genius after all!"