Thus a small or slender penis may produce deliciously subtle sensations in the sensitive areas of the vaginal opening and G-spot, while a long or thick penis may offer a woman more of a sense of fullness.

The G-Spot
The G-spot isn't a magic button, but rather an area of tissue that feels a bit rougher in texture than the rest of the vagina walls. You can thrust into a woman's G-spot during intercourse, but fingers are really well suited to the job of G-spot play. Find your partner's G-spot by inserting two fingers into her vagina and making a "come hither" motion, pressing toward the front of her vagina.

Rhymes With Dolores
The clitoris is hardly just the little nub of flesh hiding in the folds of the labia. That's just the tip of the iceberg, so to speak. The clitoris is a complex structure of erectile tissue, much of which extends into the vaginal walls. So thrusting against that vaginal tissue, particularly in the areas nearest the opening, provides a woman indirect clitoral stimulation. For women whose equipment is very sensitive or who simply love clitoral penetration, that's enough to send them over the edge.

At Your Cervix
The vagina ends in the cervix, the knob-like opening to the uterus through which menstrual blood exits. With deep thrusting, an average length penis will probably reach the cervix; a long penis will definitely hit the mark. Some women love to have their cervix pounded; others hate it. Ask your partner what she likes, and if you're hung like the proverbial horse, be careful not to bruise or abrade your partner's cervix.

Different Strokes
A long, skinny penis isn't better than a short, thick one, and a humongous erection doesn't trump them all. But a girl's got a right to a preference. The important thing is that each woman you bed will have different experiences, desires, and responses in regard to penetrative sex. One may like deep, full thrusting. Another might want it fast and hard and not care where or how deep your penis reaches as long as you keep up that rhythm (and most certainly hold off coming for a long time). Another woman may even prefer anal penetration to vaginal penetration; for her, a smaller penis may take the prize.

So, what's a guy to do? Unless you've got a collection of dildos, you probably only have one phallus in your collection -- the one you were born with. Not to fear. In a future article, I'll offer you some tips on making the most out of what you've got.