Add a number to each selection in Sublime Text 2, incremented once per selection

Is there a way to add insert a number that is incremented once per cursor in Sublime Text 2?

Example, with | as the cursor:

Lorem ipsum dolor sit amet, |
vehicula sed, mauris nam eget| 
neque a pede nullam, ducimus adipiscing, 
vestibulum pellentesque pellentesque laoreet faucibus.|

Desired result:

Lorem ipsum dolor sit amet, 1|
vehicula sed, mauris nam eget2| 
neque a pede nullam, ducimus adipiscing, 
vestibulum pellentesque pellentesque laoreet faucibus.3|

Does this functionality exist natively, or is there a plugin providing it?