subject: New Article - How To Last Longer In Bed Right Now [print this page] Do you know what affects your sexual performance? Your penis size. A lot of people (including the old 'me') have been convinced that 'size does not matter' - I blamed my sexual failures on other things than my 5' penis. But then I did a bit of research about the subject read some scientific papers and could not dispute the evidence - size matters. Both physically and psychologically.