Re: If it was safe, practical and fully functioning....
Ok I just measured my hands when in a fist, one on top of the other....so it looks like about 7.5 inches when including a little extra coming out the end. Then I measured the circumference of a 32 fl oz Snapple screw top lid that appeared to be about right....that was about 5.75 inches.
I know this is obvious to all guys (and some women) but 7.5 inches is incredibly long, so when every man at TAM claims to have "about 7" I'm usually thinking, um....probably not.
I was with a guy who claimed he was 8 once....I'm thinking more like 7.5 he was. But it was HUGE, to me, in my hands, and in my body. 7 would still seem huge to me if it had some girth (even less than my Snapple bottle top). That guy I was with, we actually didn't fit together at all, couldn't get all the way in. But it was short lived, and I knew I'd be able to work with it if I had more time.
Remember the question was about an ideal, not about what would/could absolutely make me just as happy.
Remember the goal of feminism: Making sure only alphas get laid!