Suggest you read the tutorial, or just browse various topics in the Help section.
If you're afraid your kids would see that tempting white V in the red or black box in your systray taskbar, you can always set it to require the password ("striptease") in order to activate it. If you think your kids could guess that password, you're probably already busted, but that's none of my business. If you want more protection even after you close VirtuaGirl by X'ing out, you can click "Quit" and then the icon in your systray goes away. If you have Windows XP like me, you can quickly bring it back by clicking Start, then Programs, then VirtuaGirl. If you had checked that you want password protection, that would still be in effect. This all might sound complicated, but with practice you could do it in 2 seconds. Enjoy!