yes, it is perfecly fine :-)
6.5-7 inches when erect.
6 to 9 months
varies, but should be erect by 6 months
Stroke it
A northern erect-eared long-haired dogs is usually called a Spitz.
As with all dogs, it's normally because they need the toilet.
German Shepherd's are born with naturally floppy ears as their cartilage in their ears has not yet developed enough to support them. Most German Shepherd's ears will stand up eventually, all though there are sometimes Dogs that retain their floppy ears. The vast majority, however, will have erect ears in time.
Scroll down to related links and look at "Images of German Shepherd".
Yes its totally normal. The erect penis is about twice the size of the placid penis.
It's normal. The ears should be erect within nine months of age, however.
Sure, some men erect just by seeing a hot girl, some men need to see them naked, but if you're looking at a naked woman and not erect then you may have a problem.
It is absolutely normal
6.5-7 inches when erect.
The full adult size of your GSD will depend in large part on the genetic background of its parents. Adult males should range between 24-26" at the shoulder blade, females from 22-24". Males within the standard may weigh anywhere from 65-90 lbs. depending on their bloodlines. Females may weigh anywhere from 50-75 lbs. Although your pup will reach close to adult height by 10-18 months, he will continue to fill out until up to 3 years old.
No
NO.
The ears should rise within 9 months of age. "SOFT" ears are a disqualifying factor only in the show ring.