How can you lose your virginity without pains?

Everyone is different when it comes to this - some people have no pain when losing their virginity, whereas others wince in pain. The best way to reduce the pain as much as possible is to be sure you are comfortable, relaxed and you trust your partner. also make sure you are excited enough and use lube if necessary. The pain usually comes from the hymen, a little bit of skin covering part of the vagina being broken. Some girls break this by playing sports or during other sexual activity such as being fingered.
So basically, just be sure you're ready and take it slow.