Sun and Moon

so since I haven't seen anything like this yet, this is if y/n as her periods your y/n your boyfriends are Sun and Moon. they don't know what. periods are yet cuz you haven't really told them. so if you would like to teach them you can. but they don't know who they exist and you have your period well you're at the daycare And you accidentally bleed on a chair and Sun starts to get worried. have fun. make sure they don't freak out