Keep your eyes on the wheel

"Is that a ladder in your tights or a stairway to heaven?" It's the lamest chat-up line I've heard of and I promise I've never used it, although Pretty Polly have unashamedly referenced it with this new campaign that unveiled what is apparently the largest ever outdoor ad in the UK.
This lively billboard on the busy Chiswick roundabout not only gives drivers an eyeful of slinky leg, but also the dubious thrill of an up-skirt view as the chill London wind ruffles the model's dress.
More here and here.