BEST POSITION FOR A MAN WITH LARGE PENIS

Although many men think that having a large member would be a gift from the gods, the truth is that it can be as much of handicap as an advantage in the loving department. In fact, some might say that the only advantage is that you can impress other men in the locker room; for although a few woman may be "size queens", the majority, despite bawdy talk among girlfriends, are anything but.
A long penis is actually less desirable than an average one for the majority of women: anything over seven inches long is just too long for sex, and can be uncomfortable; bear in mind that the average vagina is about five inches long, though admittedly it does stretch out when a woman is sexually aroused - but certainly not to eight inches or more (which seems to be the length of penis that many men think of as "ideal"!). Most women can only accommodate such a large penis is if they are highly aroused.
This is because when a woman is very aroused, her uterus tilts back and her vagina effectively elongates underneath her cervix (as pictured when she's lying on her back, that is).
But the problem, of course, is that most women simply don't get extremely sexually aroused during sex: certainly not to the same extent as men. And so for most women, most of the time, the maximum length of penis they can comfortably accommodate in their vagina is about six inches - maybe seven at a pinch. And guess what? This happens to be the average penis size among white men. (Asian men and woman are both smaller in the genital department, so they too fit well together. Obviously you potentially have a problem when you have a Caucasian man and an Asian woman making love.)
So, men who are six inches or less, take heart! You're the right length for 90% of women. And if you meet one who likes more meat on her man, well, satisfy her with oral sex until she can't do without you!
However, we digress. We were thinking about the ideal sex position for men who are well-endowed. The object is to give him feeling but to keep her safe from having her cervix bumped as he thrusts with his long cock. So any position that gives him the impression that he is deep inside her, while in fact his penetration is actually quite shallow, is going to work well.
A very good position to achieve this is to have the man lie on the bed face upwards, and then have his partner lie on top of him with her back on his chest, so they are both facing upwards. Then he can insert his penis between her thighs and into her vagina: the angle of attack means he can't get his whole length into her, but the effect is that the shaft of his cock is held loosely between her thighs. This means that he gets good sensation as he thrusts - and this can be improved if he uses a lot of lube on her thighs, so that the sensations he gets in the lower part of his cock are very similar to those the upper part of his shaft feels when it's inside her vagina. She can play with her clitoris, which may mean that she can reach orgasm - which will be an added pleasure for them both!
Other positions which may be helpful if you're in this situation are the ones where the man cannot enter his partner deeply, or where she has some measure of control over how deeply he enters her.