Unabashed

un-a-bash-ed (n-bsht)
adjective

1. Being too honest about things one might normally be bashed in the head for.
Unabashedly, telling one's boyfriend that you are going to go and make a poop.
You are unabashed, when you tell coworkers, who don't believe in ghosts, that you've just seen a ghost at work, standing behind a customer getting a photo enlarged for the ghost's memorial service.

Note: this is not the same thing as telling the said customer that you just spotted their dead relative. THAT would just be inappropriate.

Synonyms: brazen (this word is best applied to hussies), shameless.