You\'re going to be doing it in steps so you\'ll find the right size easy. I can tell you that a lot of people have been seeking a 6.5 in circumference and have no problem with their women taking it, however, I\'m right at about 6 in circumference and my 25 year old girlfriend gets sore very easily. That\'s not really a problem there, but she can only get half of my
Dick in her mouth because she can\'t open wide enough. Before this girlfriend I never really enjoyed blow jobs, as all the previous ones from the different girls were horrible, but she\'s good, and now deep throating isn\'t possible.
Anyway, just get probably 2 full rounds and then from there fine tune the size with a touch up or something.
Good luck