Dream of Falling in Love(2010)

Inu wa Yume Mite Koi wo suru

Atsushi is adored by the very popular S&M adult fiction novelist, Yoritomo. Yoritomo's been very worried lately. "Oh no! I'm fantasizing about Atsushi again!" His work is going great and he has an adorable boyfriend, but recently... he can't stop worrying about his relationship with Atsushi...

(Source: Renta!)