Coming out - how to tell girlfriends?

i recently came out as bisexual to some male ex boyfriends of mine who i am close with. (i'm female)
They haven't really said much, but neither reaction was negative, more surprised.

I am worried about telling my girl friends. I think they will take it well, but might start to be weird about changing and showering and spending the night. I don't want that.

Anyone have advice?

chibacochoke