Can this 1974 "Raped by Mick Jagger" ad be real?

It has to be a hoax. I truly hope so, anyway.

I just saw this posted in the Facebook group "1960's and 1970's Advertisements". From there I tracked it back to a post from last June in Anorak. The oldest post I found was on Flickr from 2008.

Does anyone have provenance on this? Claimed to be from a 1974 "rock magazine," it parodies a long-running campaign for Maidenform begun by the William Weintrob Advertising Agency in New York:

Via Blogspot

So, if you combine 1970s political incorrectness, the bad-boy image of the rock press, a cheap shot at consumerism, and a wink at the contemporary rumours about a Bowie-Jagger affair, would you end up with such an ad?

If you have any information about this, please comment below.