Title: One's an instinct, one takes some will
Prompt: post-it notes
Pairing: Zayn/Louis, Perrie/Zayn/Louis
Rating: R
Word Count: 2,249
Warnings: None
Summary: Louis and Perrie hum and it's a nice sound, and the tune is stupid it sicks in Zayn's head for the rest of the day, but it's a nice sound that he could get accustomed to.
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