Just to redress the balance and provide a little (surprisingly needed on a sex forum) sex education, I'd like to ask the ladies how big their fannys are.
You see, the vagina actually fits pretty much any size cock or object out there. After all, a babies head is designed to come out of it.
But before it gets all stretched out and unless you do a million kegels, it may not recover its elasticity
So my point is that, even small cocks can pleasure a women as the vagina.
But, heres the thing, all mens pleasure nerves are in the end of his cock, but women's are actually mostly in the clit, which your cock will not really be able stimulate
That's why in porn for example, you see the pornstars rubbing their clits whilst being pounded. And why you have things like magic wands and vibrators with ears that apply direct stimulation to the clit
So this makes it difficult but not impossible for a lady to cum from only penetration.
And if they are honest they will admit this.
Oh sure, they will get nice feelings, but generally not, and it doesn't matter how big or how small your cock is, if you aint touching the clit, its not gonna happen
And pretty much all women whether they care to admit or not, will take a large one over a small one every day of the week
http://www.medicalnewstoday.com/articles/271647.php
Feel free to debunk my info, but size really does matter to women, even if it aint gonna make them cum