Little!Alec and Others Adventures
Okay let me just start off by saying this is weird and bad! I was watching my very serious baby cousin and came up with a Malec story but ageplay based as well. Warning! There is swearing in this, bedwetting, accidents, lots of insecurities, standard ageplay stuff, Robert Lightwood is cruel but I want to make Maryse a good mom so yeah, any other warnings I'll add as the story goes!
Alec has been doing ageplay with Jace and Izzy whenever he feels the need to or when he's extremely stressed. He slips one night and Magnus finds out. And the story goes from there.
(I don't know how to do summaries without spoiling everything lol)