2 for 3, 4 for 6, 6 for 9!

If you comment on any of my poems I'll return the favor, if you do 2 I'll do 3, if you do 4 I'll do 6, if you do 6 I'll do 9! (Each two I'll add an extra) Please~! And thanks! I'll try to get them done as fast as I can~! Thanks in advance :D
Sky