I am all here for Blitz and Hearth kissing for the first time in a time of distress (much like Percabeth’s first kiss) but I think this might be my favorite scenario right now:
Magnus and Hearth have to go one way, Samirah and Blitz have to go another. Magnus is having a heart-to-heart with Sam and they say goodbye. Blitz and Hearth are being their usual selves and talking/arguing. Before Blitz leaves though, he takes a long, meaningful look at Hearth and kisses him.
It lasts for a few seconds and Hearth kisses him back while Magnus watches them, a bit embarrassed by displays of affection but he’s not going to say anything in this situation.
They break apart and Blitz leaves with Sam. Magnus goes over to Hearth, snaps him out of an apparent daze and signs, I didn’t know you two were together.
Hands shaking a little, Hearth signs back, Neither did I.