Hetero points are points you get for doing typically manly things, different amount of points are awarded for different things.
Losing Hetero points is also known as gaining Homo points so if somebody is on negative Hetero points, they are on Homo points.
John: I just raced a guy at the traffic lights!
James: Dude, have 5 hetero points!
John: Let's bake a cake with pink icing when we get home!
James: Make those homo points