That is absolute bullshit and we both know it. I'm a woman who has discussed this with any number of friends, many of whom have plenty of experience in this matter. Not one woman has ever said anything like that. I have heard several comment about having had sex with a man whose larger penis was painful to her. I doubt you've ever had sex with a woman, honestly. If you knew your way around a woman's body, you'd understand that as long as a man is something like average, it makes little difference. A penis so small it keeps slipping out might take some extra work-arounds to enjoy, and a penis so large it hurts might not be welcomed back inside her vagina.
You know what a huge penis is good for? It's a novelty. That's pretty much it.