I have a average sized penis and want to increase the size of my penis naturally or something along those lines. will testosterone help or anything?

Sorry: but there is no natural or unnatural way to increase penis size.

Not pinocchio: Average sized is not likely to benefit from treatment. In those rare individuals with a significantly small penis (under 5 inches) treatment works. But this isn't going to keep the penis growing and growing and growing in people without a disease. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3214853/ and it's human chorionic gonadotropin (a pregnancy hormone!) not testosterone.

No: Nothing you do (aside from getting an erection) will increase penis size unless you haven't gone thru puberty. Still, you can't control your body's response to puberty so rather than focus on size, turn your attention to what to do w/what you have in terms of pleasuring your partner. And stay away from testosterone unless you want to become infertile (sterile).