Strings attached could mean hidden content, but in the case of this GIF, it means the only clothes our beauty is wearing. She falls to the bed after showing she wears nothing but a string net and then open her beautiful legs as wide as she can, leaving her cunt in plain view, hidden only by strings which need not to be removed, they can be placed aside with a simple wrist movement, and then she could be fucked easily and with pleasure. And as sweet she looks, nothing could prevent us from filling her cunt and jizz her face.