It hits you sharp. Like a punch in the stomach. All of the sudden you're entire world is focused on this arousal. It lodges itself deep into your gut. Your fully aware of that place now. Its screaming out. Loud. It is begging for attention. It wants.
Sometimes you can hide this sudden onslaught of sexual energy. Especially us, women. Our nipples might suddenly become hard little nuggets; but you'd never know it while they are hidden inside of our lacy bras. Our labia might be swelling up with each passing moment, but again, that evidence is well hidden between our legs. Occasionally blood might start pooling in our cheeks, but a woman can blush for many different reasons. Including embarrassment.
Some might be able to tell. The brightness in her eyes. The tale-tell hint of amusement on her face. Or the small, almost always, unnoticed hitch in a single nostril. Most people miss these signs, and so a woman is almost always able to hide her arousal from those, that she doesn't want to inform.
Some of these moments are like fireflies; a small burst of energy, that flickers in. And then out. Silenced by refocusing our attentions on the things that need dealing with. The boss. The phone. A friend's lament about her husband, boyfriend, lover. Brushed aside in a single moment. It is as easy as breathing.
Other times, the action that has caused the arousal, continues; making the ability to dismiss, much harder. The image on a movie screen. The scent of a man who is nearby. The way a lover is looking at you. A touch that is consistently caressing that part of your body, that when stimulated, sends signals to your womb. Waking it up. Feeding the arousal.
Those moments take more focus. They take more energy. But even those causes can be tamed.
For the most part.
There are times when it cannot. When the ability to redirect loses out, to the arousal's need to be fed. It is like a hail storm. It is simply, there. There is no telling it to stop. No convincing it to slow down. No reasoning with it to just go away. It is hungry. And like a crying infant, it wants what it wants, and it wants it, instantly.
And so you feed it.