I find nothing in that photo or in that ad to be lascivious. Whether or not it leads you to lascivious thoughts is for you to decide, but to decide that it leads others to it is pretentious, really. And, that kind of thinking is also what detracts from freedom. I kind of like my freedom. I don't think this ad or this thread is stepping on anyone else's freedom or endangering anyone (as I'm not inclined towards perverse, ill intentioned addictions), so I'm rather inclined to think that's quite alright and proper, given the context.
Context is really where you separate appreciation from illness when it comes to the human body, wouldn't you think?