SAPPHIC BYLER HEADCANONS (some fluff and some angst)
Michelle and Willow braiding eachothers hair at sleepovers (even if Willow doesn't have as much hair to braid with lol).
They both make friendship bracelets that they NEVER take off (apart from when Michelle starts dating a male version of El....).
Both of them being more physically affectionate (holding hands, kissing cheeks etc), as it's more socially acceptable for girls, and blushing extremely hard whenever they do so.
S3 Michelle thinking that she has to wear makeup to grow up but instead of finding what she likes, she just copies her mother and doesn't like the style, but thinks she needs to wear it. Willow doesn't like makeup but ends up feeling insecure because she doesn't wear it.
S3 Michelle pretending to be dumb for male attention because she feels that's more important whereas Willow keeps putting her hand up in class and ends up being called "bossy" and "stuck up".
Michelle and Willow going to play out in the woods and getting their clothes dirty. Michelle wears a dress and Willow prefers shorts. Both are told it's not "ladylike".
Both of them sharing hair ties/hair clips etc and always having extras on them for the other.
Once they start dating Michelle loves to leave lipstick marks on Willow (once Michelle finally feels more comfortable on her own style of makeup).
When Willow leaves for California, she manages to steal a bottle of Michelle's perfume and sometimes sprays it on her pillow when she feels sad.