I realize that this anecdote is hardly "scientific," but it is a blind study, of sorts....
My wife has no idea about Penis Enlargement whatsoever - none. During the past 11 months or so, I've practiced stealth Penis Enlargement (although not nearly as consistently as I would've liked). Anyway, I've increased the volume of my erect penis by 64%. My length is only about 1" longer than it used to be, but my girth is also 1" more. My wife has commented on "tightness" (due to the new girth - unbeknownst to her)....however, here's the key:
As my penis has grown, so has her desire for sex.
This has nothing to do with the "power of suggestion," or any other psychological factor - because she knows nothing about Penis Enlargement and, being a nurse, I doubt she'd believe it anyway. All she knows is that sex seems to "feel better" now, but I'm sure she doesn't know why.
My technique is no different, nothing else has changed - just a bigger cock....and we screw as often now as when we were a young couple.
For me, this realization is worth more than hundreds of pages of "scientific" speculation or documentation.
A bigger dick carries the potential for greater pleasure.
Period.
P.S., A similarity is the flipside of pussy size. Would you prefer a gigantic, gaping cavern or a wet tight pussy? Welllllll????????
Do you think a woman would prefer a skinny weak erection or a thick powerful man-muscle that bottoms-out inside of her?