From the Anime 'kiss him not me' I bring you 'Baka!' a story about Nanashima and Igarashi. In this story, Nana likes Igarashi but is pretty much a tsundere, and will clear up any assumptions, by telling lies as if he hates Igarashi when in fact he loves him.

Unresolved sexual tension? More likely than you think. Kiss Him Not Me fanfiction / kind of crack but also the whole show is crack soo ~ Complete ~ Might be inappropriate for young users. Title from Falling by Haim

A whole book about Igarashi and Nanashima in a lot of different situations. Each chapter is a different one shot with them in different situations and scenarios. So expect something different each chapter :D

Just a yaoi story