Prior to that, the Szostak character slammed Stark into the wall. It seemed aggressive and violent rather than sexual to me, but it's impossible to know for sure until we see the clip in context.
Feige reiterated in an interview with Empire
that there won't be any cameos by other Marvel characters in IM3. He could be lying, of course, but for now that's the party line.
Originally Posted by pr0xyt0xin
the image in question:
appears to be a somewhat heated moment (either sexual or angry). Both of which emotions I could see Jan displaying if Hank was either A. missing, B. creating advanced artificial intelligent tech or C. not paying her enough attention.
The only debunk I see is that yeah, IM3 already has such a wide load (Extremis, Mandarin, Chen Lu, Coldblood, Firepower) and we have been told it won't be a "Avengers prequel" so to speak like IM2 was.