No , you should not trust it. Please see my post 2 above. It explains what this is about and how "she" found you. The reason you share a mutual friend is because the account in question used your friend's friend list to find you. This grants "her" seeming legitimacy as someone you might know.
Got referred-to this number from FACEBOOK; telling-me to text-her on my cell phone..said her name-was: Jennifer Kettinger..she texted-me a LINK to,it-turns-out, WAS: fling.com (which APPLE/FACEBOOK APP..blocked, saying the site has illegal-content,etc.)...so I tried DIALING the phone# the texts came-from. & got VERIZON "disconnected-phone" warnings...I guess she's a SCAM or other-illegals that seem-to "permeate" FACEBOOK (maybe one-of-the-ones, kicked-out-of MYSPACE, I read-about in the online news reports??)...hmmm !!
Definitely a scammer. She did the same thing to me. Friend requested then sent a message to text her back on a phone number. I immediately blocked her and reported her on Facebook.
Got a message from Ashley Gaspari saying that shes likes my picture. then she proceeded to ask what i wanted in a woman... of course she looks 16 in the picture and had no mutual friends of mine. then she sent me this number.What a [***].