Supercorp + Lexi: who would be the one to wear matching outfits with the child. bonus if you add in the dogs lol
*squeals* SO!! I have this headcanon that once Lexi finds out that her mom is Supergirl they have this secret family photo shoot where Kara dresses up as Supergirl and carries Lena bridal style and Lexi dresses up in her mini Supergirl outfit and holds Daisy while Mac has his Bat Dog costume (complete with Mask) on! They also do one with Lena as Wonder Woman and Daisy as Robin!!
Anyways besides dressing up like her favorite super hero, Lexi loves dressing up like Kara! With soft sweaters and little mini button downs and sweater vests and little mini Sperrys! And she loves when Kara does their hair in matching braids!! But she and Lena have matching soccer jerseys that they wear when they watch games (Kara has a photo of this as the background on her phone)
I have this side headcanon that Lexi doesn’t really like dressing super girly and her style is more androgynous. So for this big fancy gala she confesses that she doesn’t really want wear a dress so they get her this adorable tux and she’s all set but on the day of, some asshole says something to her about girls shouldn’t wear suits and Lexi gets all sad. But Lena ‘no one forces my baby into a dress if she doesn’t want to wear a dress’ Luthor calls her stylist last minute and gets fitted for this bitching tux so she and Lexi can match. Of course they end up on the cover of all the magazines! Because hello! They look amazing!