Nah dude. Like people say, "its not the size of the sea, but the motion of the ocean." Anyway if the girl likes you it wont matter on how big your penis is.
yes
Yes, I believe what you're talking about are pearly penile papules. These small, harmless bumps form on the corona (the purple ring around the penis, see attached image) of the penis. Though these bumps are sometimes confused for HPV by inexperienced doctors, they're quite normal, occurring in 1/3 of all males. If you are still unsure about this please seek medical advice from your Doctor. If you are having unprotected sex then there may be the chance you have an infection.
Your penis and testicles are only connected by a very small tube. You can still have an erection if you are missing one or both of your testicles if that is what you are asking
As long as you have the ability to have an orgasm, you can be fertile enough to have children.
If it's 2 inches, then it's much shorter than the average. If it's 2cm, go see a doctor immediately.
how old is he?
The penis should grow during puberty, but some people start the stages of puberty later than others. Many boys don't complete puberty until they are 17 years old. If you feel that you have completed puberty, and your penis still has not grown, then you should contact your doctor about it to see if they can figure out what the particular problem is. There are a few conditions that may prevent the penis from growing, or can cause puberty to arrest (not complete), and you want to get those ruled out, or if treated.
If this is painful or prevents you from general use of your penis (for example, painful sex or trouble urinating), see a doctor asap. Otherwise, I would still see a doctor about it anyway, but the priority would be lower.
Well, you've hit puberty but there' still more to do. Remember that everyone develops at different speeds
You may just be a "late bloomer". The average length of an erect penis (fully developed) is between 5-7 inches. If you are concerned, talk to your doctor.
If you get bit by a fly you should be fine. If the red spot gets bigger you should see a doctor.
No need to worry as you are still a little boy of 13 years , there is a chance that it will grow as there is time for it . Yeah, your still young. But usually guys your age go from being 4 in to 6 in so, you are kind of small.. Its not like your 10 or anything your friggen 13 LAWL. But hopefully it will get bigger. Maybe you should try a penis pump?