Dick Cheney Sunglasses: what is that reflection?

Speculation is growing as to what is the reflection in the sunglasses of Vice President Dick Cheney. The internet is buzzing; many believe the reflection to be that of a naked woman. According to the White House Website this photograph of Dick Cheney was when he was doing a spot of fly-fishing at Snake River in Idaho.

Ok so nothing seems strange there, however when you look closely at the reflection in the sunglasses, people have been saying that it looks a lot like a naked woman. Although many believe it to be a reflection of a naked woman, some think that it could just be his arm.

Source - ajc.com

So what is the reflection then?