I wasn't going to reply to this and let you bask in your confidence but, How you fit a girl has alot to do with sexual chemistry and compatibility. Truth is women want to be filled up nice, stretched out and f-e din a variety of positions because its what makes them feel sexy as heck. Laying on their back jus getting ate out most of the time, while it feels good, it doesn't help the feeling sexy part. Nor does f-ing when the guy can't even fill them up. You are however a good example of how some women will settle though because of other qualities that might make up for it , ie: looks, personality, social value, etc
Girls will be nice as fucc about your circumstances to you because no woman wants to shame a woman about his manhood unless they're cynical bitter and resentful b.itches. They won't ever tell you that you're not enough but myself, I've heard it from several women pillowtalking about guys like yourself that they dated.. I think ignorance is bliss and if it works, keep living blissfully I guess. But I think a little awareness is necessary..