Ruby 27

A very slightly modified version of this (via):

puts <<2*3,2
puts <<2*3,2
2

The number of times that puts-line is printed grows exponentially.

$ ruby quine.rb | ruby | ruby
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
puts <<2*3,2
2

$ ruby quine.rb | ruby | ruby | ruby | ruby | ruby | ruby | ruby | wc -l
    3283