Hey Spoo, beer-can thick isn't what I'd call average.
We definitely want at least average and 4-5 inches isn't what we think is average. I think I'm average and yet I have been the larger of the guys most of the time.
Fem D is let down to some degree, but she's learning. She has been with guys who are smaller and had fun. I think she'd just like something larger in general, even larger than me. I don't have a problem with her preferences but if I met a gal with a pussy too small for me (or too large!) I wouldn't have a problem if my partner didn't.
There's more to a person than their "parts".

Yes,
there is!
Male D