I am confused about the human sexuality

I don't get how the g-spots is said to be up the anus, i tried to find mine and it wasn't pleasurable.

My gay friend said God put it up there so every man should be gay, it explains that gay sex is more natural than female and male sex and that proves homosexuality is natural, but I beg to differ, I like him but his a little bit retarded, he can't even pronounce words right and his IQ matches up to an 8 year old's... he is so annoying and always lies.

the male g-spot to me aka the prostate gland is only there mainly its a switch to allow EITHER urine or sperm to pass down the urethra.
and has nothing to do with anal sex, that thought to most men is disgusting!
his so wrong studies show less than 10% of men are gay in most areas, so if the prostate has something to do with being gay then I'm sure over 10% of men would be gay, if we all were the human race would of gone extinct a long time ago because in general man and woman are here to reproduce.

Male and female sexuality appears to be different, men are more visual that's for one. Although unlike women, men cant be seduced by the same sex, they are either born gay or they are not. Women, although straight, can engage in homosexual behavior through seduction.

There was a study done in washington D.C on 128 straight men, they showed each of the men lesbian porn... every single man were fully aroused by it, they showed them straight porn every single man were fully aroused by it but then they showed them gay porn and only 2 men were and only a little aroused.

whos right me or him?

thanks

The majority of women do not have a g-spot. When they do, it can sometimes be found on the superior/posterior side of the pubic symphysis. In other words, if you were to reach your fingers into your vagina it would be easily found on the in-side of your pubic arch that your fingers most naturally conform to.