The story is fairly entertaining and one must expect unusual behavior in a world such as the one in this story. But there are some happenings that are universal; or that can be explained by what you've written in previous chapters. Iruka asking sasuke and naruto what they were doing--wasn't it obvious, he and kakashi do it regularly. and why do they need to take naruto to the vet when he's just in sex induced ephoria-they already knew he was in heat; you had tsunade call and tell kakashi after his physical and vacinations.--why would they send him to a school full of animals when he's in heat? im surprised he didn't get raped hundreds of times. plus kakashi wanted them to breed-yet you have iruka hysterical about it and kakashi taking him to the vet like something's wrong. and why did they eat in separate rooms-they haven't eaten in separate rooms the last time you wrote about them eating. also, sasuke would not have run away from naruto while mating with him. sasuke had already claimed him by biting him (and i believe you wrote about sasuke having sex with him in a previous chapter). animals don't run away from their mates-they get possessive and protective and sasuke would have growled at iruka for daring to interupt their mating.

cute