An advert from a flooring company, looks quite innocuous at first glance:
But, look at it upside down, cover the lady’s head and glass, and it takes on a whole different meaning….
It looks like this must have been done on purpose - that or it’s a very happy coincidence.
Shamelessly stolen from Khushil’s post 
(Oh, and ignore the typo on the text someone added - “what do do you see” - heh).
Either they were trying to slip in some naughtiness or they just found the image somewhere with out realising what it was. Nobody would suspect advertisers of trying to create a bit of controversy