When it comes to getting info on Behati Prinsloo side tattoo I admit it is not the easiest thing. I am guessing you mean the one on the side of her bust? (You probably know she also has one on the nape of her neck.
Apparently the tattoo, which is in a position where a bra would cover it, given that she is a lingerie model, is the work of Brian Randolph who is Adam Levine's favourite tattoo artist. Adam has a matching tattoo on the inner side of his most naked arm.
The tattoo reads : "You're so cool, your're so cool, you're so cool" and is a line from Behati's favourite movie 'True Romance'.
That's very fitting considering the couple were married in Cabo San Lucas, Mexico on Saturday July 19th 2014, I hope they will be very happy and I hope I answered your question
