I've heard some really fucked up stories on penile surgeries... You face more risks than benefits, including not being able to fuck for 6 months
if the procedure is 100% successful lol...But on a good note, what man wouldn't wanna be 3-4 inches bigger? I think that's a 6 months well worth it IMO.
as for sexual stamina and performance, there's some natural herbs that are proven to actually work. Yohimbe Bark is one of em and and it works wonders if you wanna last a little longer in bed.
aside from all the pills, pumps, and other crap. NOTHING beats a healthy diet and exercise.