You change your position.

You turn your body around so you catch the full frontal view. While the back is where the action is, the front has a lot more going on. As you keep fucking yourself, you wonder how you manage with these breasts. You try to push them together with your arms, but they mostly just sink into your flesh. They are really heavy! If you lean back, you can actually see the mess your cock is making under the bulge of your middle. It is quite taut, so it only bounces slightly. Your boobs don't jiggle or bounce as much. It seems like the bases take up your entire chest. That probably gives them a firmer anchor.