This looks like the face of someone in throes of passion. Well, it is, but she's also in the middle of labor. Amber Hartnell is one of many women who claimed to have experienced an orgasm while giving birth.
"All of a sudden the orgasm just started rolling through and rolling through, and it just kept coming, and my whole body was spiraling and rolling, and I was laughing and crying [and] purring," Amber said.
Well, that sounds more fun than the kind of child birth I've heard about. If you don't believe Amber's story, there's a documentary about the phenomenon called "Orgasmic Birth." [YouTube]