If it's just for a couple days, you could probably get away with it on all the engines, but as The Infiltrator said, the FTC has put a lot more pressure on anything celebrity related.

I just did a search for "jessica alba boobs" on all 3 major search engines and got 0 ads.

Before you start promoting shady stuff, I would run something more legitimate to get your account past the initial startup which is more prone to review.