The Slip-up

I know I already have a vampire Marinette book but I wanted to do another onw with a different plot. Marinette and destiny are twins. However the girls have a couple little secrets, the girls are part of the superhero team Marinette is Ladybug Destiny is Paon Sarcelle. the girls are also vampires however the only thing they were born to human parents. the girls wear contacts that make their eyes look blue while they are actually red. what will happen when their friends find out? will their friends find out?