You can buy via paypal from virwox.com to buy litecoins and immediately exchange them to bitcoins on the virwox. Then you can send them to a bitcoin address.
It isn't a straightforward process, and is a little pricey for small transactions. I think 1 BTC is okay though.
You first have to deposit US dollars or euros into it from Paypal. Then you convert them to Linden dollars, SSL (the site is actually for MMO virtual currencies), and then you convert the linden dollars into BTC. All these are instant transactions.
To withdraw the BTC to your own wallet, they manually verify every withdraw request, which they claim can take up to 48 hours.
Just takes 3 mins :)