Where to buy fb2 books using paypal?

I got many fb2 books from fictionbook.org before but most of them are not free anymore. There are many options where to buy the books but only very few are available for those living in US. I am wondering if there are any sites selling fb2 book using paypal. Thanks.

PayPal is not working with Russia, so mostly-russian-fb2-industry can not work with PayPal.
But PayPal provides you with virtual credit cards, so you can buy some russian books at www.litres.ru

Thanks a lot. Did not want to use real CC and have not thought about using virtual one. Now I am reading!