There's a lot of fakery out there and most of it is pretty obvious - there's even one blog devoted to showing off fake spanking pictures (Spanking Fake) but this doesn't look like one of the more obvious ones. It appears to be quite a contemporary image - that style of clothing for an athlete has only really been around in the last ten to fifteen years. Another suggestion would be that it's a spanking model that has posed to make it look as if she's participating in an athletics event. The marks look like clear evidence of a caning so that makes it unlikely to be a US school setting.
So either it's just an image of an athlete that has been photoshopped to introduce the cane marks. Or it's a very cleverly shot spanko scene where the fakery is making you believe it's a college athlete. Or...
