The one on the left is turned to make you think that it's a boy because of cleavage and such; But I believe the one on the right is the man.
Are we talking the top pics by Beezle bubba? Because there is no way a girl would smile that stupidly when getting into bed with someone else.
The one on the right is definately a guy. 1, the "thing" is covered, and the chest is flat. It's obvious :B|:
The "thing" is also covered on the left picture Not every female is busty You can't even see the person on the right's chest/