Well.. okay.. September got super massive and beautiful tits.. more than Jana... but.. September simply had no facial expression.. she always had a blank face, looking so bored with what she was doing (IMHO) and even though her tits are awesome I honestly can't recall one time I blew a load to her, in all honesty guys.....
Jana on the other hand was so joyful and full of energy in what she did and oh the times I had a good wank with her are simply off the charts..
So I think it's fair to vote for the tits that made my dick hard more often, and those belong to Jana!