The first was posted on the old herpy not long before it was shut down - the humping T-rexes from an Okamoto condom advert:
https://www.youtube.com/watch?v=EQ0px0v9SII
Next is this page from the comic book Saga (issue #29 pages 7-8). The characters weren't expecting to see this when they entered the dragon's cave:

There's a couple more pages in the same issue that don't show anything, but have the characters discussing what they're seeing.
Last for now, a scene from the Lost Girl episode "It's Better to Burn Out Than Fae Away". The informant has something interesting playing on his laptop:
https://www.youtube.com/watch?v=u03L3mKqf0k
So, discuss. Anyone else love it when they put scaly hotness in mainstream media? Feel free to share any other examples you know about!