I'll bet you look good wearing their panties to.
Are you sure you're not the 12 year old sister.
Listen, boy, gals don't mind having guys around who act like them.
They treat them as mascots.
It may seem to you that you're getting intimate with them, but you're only fixing yourself in their minds as a neuter.
They may trust you, but they won't date you or regard you as a proper object of lust.
Start acting like a guy.
You won't get any praise from your sisters, but you won't get the 'fag' or 'sissy' or 'nice, but...' label either.
In a few years it will make a big difference.
Don't let your sisters turn you into a wuss
Once they made up my face and dressed me in girl clothes. My youngest sister even wanted my to wear girl's underwear which i did.