I was asked this question on more than one occasion while I was still practicing psychotherapy by both men and women. Here’s the long and the short of it; yes, size matters. However, size preference is highly subjective and varies from person to person. What's too much for some may be too little for others. My preference is different from that of my best friend; just as we have different food preferences.

When entering into a relationship, I’d hope that most are interested in the total package, not just the guy’s package. For long-term overall relationship satisfaction, I think a man’s heart size is far more important than his shoe size and, subsequently, penis size (trite as it sounds). Then again, if you’re just looking for a good time, I suppose these caveats don’t apply.

Furthermore, penis size has nothing to do with being a good sexual partner. Attentiveness and communication (physical and verbal) are essential components to being a good lover. Many women don’t reach climax by penetration. Most reach climax via clitoral stimulation. There are also different positions couples may employ whereby they can deepen penetration, no matter the size. If you’re in a loving, healthy relationship, I encourage you to discuss these matters with your partner(s).

For men, oftentimes feelings of overall inadequacy and insecurity may lead you to feel that you “don’t measure up.” I would venture to guess it’s more pervasive than the size question and recommend you examine these issues and underlying causes.

For women, there isn’t a “perfect” penis size, but rather, whatever works for you. Once you figure that out and can communicate it clearly, everything else should fall into place.

ABSO-frickin-LUTELY.

I dates some small breasts once. Didn't really like 'em. Of course, they were attached to a crazy person...so that might have had something to do with it, too.

I plead the fifth

I agree with the first answer (Tara), but have to add one thing...

It's a little more than "preference". There is a perfect penis size and shape for each women. Just like we have a ring size, bra size, and dress size, our vagina is a certain shape and size. Some are long and narrow, some are wider with less depth - so having a parter with a penis that fits the shape of your vagina will heighten your sexual experience even more.

I'm not saying that you should give up if it's a perfect fit, but it is something that you should consider when determining your sexual compatibility with your partner.

Jennifer, www.AskDanAndJennifer.com

Hell yes it matters! Can you imagine what the girl is thinking if she's expecting her world to be rocked and only gets a 90 second "pickle tickle" from Mr. Toothpick?

On Dr. T's comments - she's spot on (G-spot on to be precise).

Although, I must interject on one point. What some women might consider the most pleasurable experience in her life, another might consider it uncomfortable, if not painful. Size is important, but in very intense moments (i.e. the rough stuff), size can be a major negative. You don't want the girlfriend's 60 year old gynecologist calling you into the office saying "no boom boom for 30 days" in slightly broken English.

So I'm not sure if penis size vs. breast size similarity is the best way to go... no one has ever been impaled by a large pair of DDs (fake or natural).

You know, I was always self conscious about the size of my penis. I'm roughly at 5 1/2" and obviously I'm not packing a whopper here. The thing is? I've never had an unsatisfied girlfriend (no wives yet). You may be laughing and saying how would you know, they were lying? Well, when you can make someone have an orgasm you will know if they're faking or not if you've spent a good amount of time with them in a relationship. When you feel an increase in fluid, squeezing walls in the vagina and unreal grips and scratches you're pretty sure you got her off just right. My point? As long as you take the time to take care of your lover and make sure you learn her special spots, who gives a shit how big your dick is. It has never messed up my sex life. :P

Yes, size matters, but not in the way people might think.

From a tantric perspective there is a certain amount of matching that can take place. Imagine that people come in 3 basic sizes: Small, Medium and Large. Small fits with Small, Medium fits with Medium and Large fits with Large. You can also fit up or down a size.

But here's the kicker: As far as sensation goes, most of the pleasurable sensations take place in the first 3 inches anyway. There is also the fact that fitting a large penis to a small vagina can be uncomfortable for the woman, and only a small or medium penis can reach up to the G-spot.

Nevertheless, many women place a value on feeling "filled up" and only a Large can do the trick.

Of course technique matters as well. How a person moves can make up for quite a bit. This goes for both men and women.

Who cares of the size.... as long as your partner says she had the best time ... your size is the perfect one for her!!!

If you have a small pecker, just date a short, skinny woman. Us tall guys with large members would like to date these cuties, but alas, we are too much.

I agree, sometimes being big is not good. I am a tall guy and have a penis a little under 10". I would trade it in for 5 incher any day.

Im only 6in and my gf said im the smallest shes been wit and she 15