Walk over to her and stick the point of my knife that I have under my beach blanket in her side. Tell her "Tell your brother to keep the dog here; you and me are going for a stroll." Walk her down to an isolated part of the beach behind some brush on some dunes and tell her to pull those boobs out of her top. I would shove a cut piece of the blanket in her mouth and give those boobs a thorough inspection to see whether they are fake. That would determine my next move.
