[They aren't married here they also don't have kids here. Alec and Magnus are in a poly relationship with you, you are the newest person in the relationship and feel a little weird about it. You've been in the relationship for almost a year]

You are hanging out with Magnus at his apartment, just cuddling and talking in bed. Alec texts the group chat, with the three of you, saying: There's been a lot of demon activity, so I'm going to get back late. Around midnight or later. Don't wait up. Love you both

Magnus reads out the text to you and decides to have some fun with you so he pulls you closer and kisses you

[Are you a: warlock, or a ShadowHunter, or something else?]