mar, I know it’s so easy to get hooked into the “is my dick going to satisfy” issue. It used to be an issue for me @ 6.3” x 4.5” (BTW I would still kill for 5.5” girth!) and seems to be a problem for a great many guys almost regardless of how big or small they are.
But believe me it’s all in your head. For a start, your girl, unless she has seriously been around is really going to dig your girth (girls loooove girth my friend) and is unlikely to care a damn about your length.
My g/f told me of an encounter she had years ago with a guy who, by her description, had a dick very like yours. She liked his dick but he wasn’t too ‘big’ in the keeping clean department so she dumped him. Now in his mind, she probably dumped him for his small dick but it was nothing to do with that.
Moral of the story; Give her the whole package, bit of romance, a good laugh, a clean body, some nice threads and I am guessing she will not only love your dick and be back for more
LWH
"Louie, I think this is the beginning of a beautiful friendship"
- Humphrey Bogart to Claude Raines, Casablanca