Video cam chat sites such as Chatroulette and Omegle are a great resource to find horny girls (or guys) willing to engage in cyber sex.

Once there, ask her to show you her stomach, let her get more and more comfortable with you. Let her know she is beautiful and compliment her on her looks.

Slowly start introducing your sexual innuendo, let her know she makes you hard. Measure her response and escalate slowly, but not too slow. Your goal is to get her to have cyber sex with you. Its not easy to convince her to position her webcam where you want to it to be. But it can be done.

Once you hit it off with a girl, try moving the conversation to a more discreet medium, yahoo messenger works well.