picture perfect [Shadowhunters, Magnus/Alec]

Title: Picture Perfect
Fandom: Shadowhunters
Characters: Alec Lightwood, Magnus Bane, Isabelle Lightwood, Jace Wayland, Ragnor Fell
Pairings: Magnus/Alec
Word Count: 3300
Warnings: None
Tags: Established Relationship, Fluff and Angst, Texting, Sexting, about sexting but really texting?, Ragnor Fell Lives, Magnus Bane & Ragnor Fell Friendship

Summary:
Magnus’s phone pings and he glances down. 💘 Alexander 💘 his notification tells him.

Magnus opens the text and chokes. Noticeably. Half the table turns to look at him.