We all have that person around us who can't keep their secrets, neither theirs nor others'. This flaw in their personality does not make us love them less, but it makes us more careful with what we say and where we "confess".
Of course, the sign of the horoscope also has a little influence, so most likely, the friend who does not carry anything in his stomach is one of these signs:
Gemini
With Mercury, the planet of communication, as its ruling planet, a person of the sign of Gemini is characterized as an individual dying to deal with words. There is no guilt at all, as it is in the Gemini's DNA to reveal the secrets of the people around them.
Don't take it for granted, though, because sometimes rumors just flow out of a Gemini's mouth, and he remembers too late that he just spilled a secret.
Scorpio
You might be surprised that Scorpio is on this list, but the mysterious sign gives up its head for drama! Scorpio is dying to tell things and get information up and down and has no problem at all manipulating you so nicely that he lets out a secret.
Sagittarius
Sagittarius gets so excited when you tell them a secret that they just can't wait to tell the world. On the other hand, it's a super honest sign and maybe out of harm's way, it tells others your secret, wanting to set a concrete example.