Which event in your life do you look back on and think "I wish I knew then what I know now"?
The first man I experienced when in my mid 20s had a massive cock. 10 inches and thick too. I thought they were all like that and mine at over 7 inches was average at best.
All these years later and his is easily the largest I've ever experienced. Would have met him far more often had I have known then what I know now.
What's yours?