if you have a big one mot girls don't like b/c it hurts them so you are limited to certain postions.to me they look for more then size just my thoughts
it does get around if you have a big one and you were good so more want it.
Oops...didn't see the word dick in there at first. I guess between 6 and 8 inches works nicely for me. Most of my favorite toys are smaller than my husband and he's the only real one I've had for the past 19 yrs. I think size isn't as important as performance anyway.