There is but it is not recommended as it can shorten the lifespan of her system.
We do not recommend this for a couple of other reasons- first and foremost, this allows the use of illegally copied games. Also, if something should happen during the install it could completely ruin the system, making it unable to play anything.
In the long run it would be easier to go rent/ buy a North American PS2 to play those games you bought.