Well from what my wife says, while a small cock might be somewhat suitable for penetration, it certainly cannot produce the same sensation as a big cock. My wife's Ex could stretch her pussy in a way that I simply cannot. We have to use a very big dildo to create that sensation. All that being said, there are definitely benefits to having a small cock. Not only am I more attentive to her needs, but thanks to my small size she has also discovered the pleasures of giving blowjobs (which she hated to do with her huge Ex) and the pleasures of anal sex (which she NEVER did with the Ex). So there's pros and cons.