sex games: phone sex through texting

Fundamentally I don't get the concept of phone sex through texting; I mean doesn't having to use two hands completely defeat the purpose?
Anyway, Virgin Mobile disagrees and has come up with a "promiscuous text" service which customers can exchange sexually explicit texts with "a trained professional" and the an avatar of your choice. Included on the menu of interactive hotties is a Housewife, a Cowboy, a Secretary, a Fireman, a Nurse, a Sexbot, and a Plumber.

Anyway, even if jerking off on an LCD screen isn't your idea of a good time, the "Let's have txt" site is completely worth checking out for their intentionally over the top sexy videos. And by sexy videos, no I don't mean Sexbot.
Source...