Penis Foreskin questions?!

1) Foreskins are all different.
So some are a bit short like yours
Others longer or much longer.

2) No = auto erection is not always the case
though some do. "All the way back" is subject to some variation too
as you will discover if you are gay.

3) That is your Frenulum = google it.
Dunno why @Mark Lucas thinks you've got "frenulum breve" though
because if it goes "all the way back" without pain then it's probably
normal.

.+

First Julian it is normal if the foreskin only covers part of your head. Every guy is different. Some guys foreskin covers only part, others, mine included, cover all the head, others still have an overhang. When they are erect, most foreskin will retract on its own so the head is exposed. But again, not everyone is the same, some don't.
Second, the bit of skin under the head, connecting the foreskin to the head is called the frenulum. This is normal as well. Some say its the nerve center of the penis. It is extremely sensitive, with over 5000 nerves in it. I hope that's what you were talking about. If it's not, then let me know and I'll try and answer more if I can.
Lastly, gay or not, We all look at other guys in the gym or shower or whatever, even tho most "straight" guys won't admit to it. It's natural to be curious (I think).

Hope this helps you a bit...

personal experience and research

That's totally fine. Not everyone's helmet fits perfectly. Some of them are a bit loose; a few too loose or too tight, and most are just right. (sounds like Goldilocks, right?)

So ya got nuttin' to worry about.

And as the badge says, 'define normal'.

PS second q: that's called the frenulum breve.

I guess you aren't circumcised? that is what non circumcised ones look like for the most part. Lol either way if it's what yours looks like then it is natural