Welcome Solomon. I am personally in the "average" range by all studies, so I guess you could say that since 60% of all men fall in the "average" range, 2 of every 10 men we meet will be noticably bigger than me, and 2 of every 10 men we meet will be noticably smaller than me. So really, you are probably in the middle yourself being less than 8". You're in good company.
If I let that worry me, we'll never have any fun.
That said, Exhibit #1: my wife was married to a man before me that was below average penis size, and I understand they had great sex. She had a long-term relationship with a guy before me that had a well above average sized penis, and I understand they had great sex. My penis is in the average zone in size, and we have great sex. See what I'm getting at? It wasn't the size of the cock that made the great sex, it was the guy it was attached to.
My wife doesn't even like pictures on profiles of just the guys cock. She holds fast to the idea that as long as we click in other ways, whatever your cock size is will be just fine.
She has had guys with bigger dicks than me both before we met and since we've been swinging, and she still loves me and loves sex with me more than them. Why? Because I think most women will tell you the size isn't as important as the person. Performance or skill aside, sex with someone you love will ALWAYS be more fulfilling than sex with someone you don't. My wife and I have great sex, but she didn't marry my cock, she married me. If it was just cock size she would have stayed with the guy before me. Get my drift?
It's like tits. Is sex better with a woman with bigger tits than it is with a woman with smaller tits? No. Tit size (big or small) may be something that you are attracted to, but bigger tits doesn't make her a better lover and doesn't make your orgasms any better. Big tits doesn't make her a better match for you, doesn't make you love her any more, or make her love you any more. Exhibit #2: My ex wife's boobs are naturally two cup sizes bigger than my wife's. If that was enough for me to love her we'd still be married. And the guy left me for purportedly has a below average sized penis. I mean come on... she left me for a guy with a smaller dick!
We know a couple who are great people and very experienced in the swinging world. He is very well endowed. Like my wife says, if cock size was what it was all about then why would she want to swing. After all, probably only 1% of the guys out there are bigger than him. There is a 99% chance anyone they swing with will be smaller than her husband.
I hope that all made sense. So don't worry about it. If you are a happy couple the biggest cock in the world couldn't tear her away, because relationships aren't built or torn down on cock size. She's not going to leave you for a guy with a bigger cock any more than you'll leave her for a woman with bigger tits or a tighter pussy.
Mr. WS