Penis the Size of an iPhone 4S normal?

I hooked up with with a friend of mine for some NSA sex
(we've always been friends with benefits)
but we were "poking fun" at each other yesterday and she said I had a penis the size of an iPhone
I don't really know if that's a good thing since they measure what? A little under 5 inches for the 4S
is that good or normal for a 21 year old to have a penis that measures that erect or is something not right?
I stand 5 ft 6in and 3/4 (basically 5 ft 7in)
weigh 150 Lbs.

is this good or should I be worried?
also my ejaculate always seems cold and runny and not that much either
I don't know if its because I have sex very very often (twice sometimes, 3 times a day)
or if it's because I smoke a pack of cigarettes and drink 3 monster energy drinks per day

am I damaging myself down there?

is everything normal and nothing to worry about?
am I average?

  • Women: My penis is about the length of an Iphone? My penis is about the length of an Iphone. I'm a 23 year old virgin and was just wondering is that considered too small, and about how long is that in inches. Don't worry about offending me, just be honest. Input from women is preferred. No Kathleen lol. Its thickness is what I would think would be considered normal. You didn't answer the question though. @silver.
  • Penis is longer than my iphone 4? Im only 13? Is that good? My penis is longer than my phone when erect. I'm 13. It reaches up to the start of the head, and the rest is longer than the phone. Is it normal? Is it too big for my age? Please don't make fun! I don't know about the girth tho!
  • My penis size is about the same height as the iphone 5? My penis length is probably a little taller than the iphone 5 and my girth is about 4.2 inches around. Am I small?
  • My penis is a little bit bigger then a iphone is that good or bad? I'm 13-14 years of age and if you are wondering why I'm comparing my penis to my phone it's because i no it's hard to measure so I compared my phone to my average erection and it was just a little bigger (the phone stops a little bit under the shaft) I'm worried that I'm to small for my age