I just have to jump in here. If y'all are having sexual differences to the level you are describing then DEFINITELY, WITHOUT A DOUBT, DO NO GET MARRIED IN 5 WEEKS. Postpone it. Don't freak out, just tell him you need more time to work out some issues. These issues will only get bigger and more unwieldy after you get married. Get counselling either for you or both. Talk about the sex differences and needs. Communicate the hell out of this. Don't do it in bed before going at it though. Talk about it over coffee or something. Take your time, this is important stuff.
If he wants sex everyday and gets irritable without it, how do you think he's going to react after a year or two of rejection, sex once a month.
If he knows that you think he's too small it will hurt his ego tremendously so be gentle. Most of us are at least mildly insecure about our size or shape or something. Statistically, it seems like 8 inchers are hard to come by (no pun intended), so maybe that expectation is unrealistic. Sorry, honey, just giving it to you straight, like I see it.
The reason he spends so much time focussed on his performance is that he is a sensitive guy, trying to please his lady, trying to make sure that she's having a good time. If you let your expressions & reactions make it obvious to him that you are really enjoying him, he will relax more. There is nothing more exciting for a guy than knowing that he is making his lady insane with pleasure. You have to let him know that it's ok for him to relax and just enjoy himself.
Take more time before hitchin the mule permanently. Marriage does not fix sex problems or any problems really. It does the opposite. It magnifies them. TAKE YOUR TIME. BE PATIENT. LIVE TOGETHER FOR A WHILE IF THAT WORKS FOR Y'ALL.
Sex is amazing stuff. It can bring one of the most spiritual experiences into daily proximity and it can destroy lives. When ENCOURAGED to flourish in a healthy relationship it will bring joy and fluidity to a relationship. Don't underestimate it's power or importance, especially for most guys. We love to have sex, it keeps us in balance, it makes a gray world look like rainbows.
Sex should be on a pedestal. It is a treasure. You are going to be asking him to restrict his sexual activities to you. You better make it worth his fidelity. You are the only one right now with the power to make his heart sing with joy or cry with anguish. Choose carefully, work things out, go slowly.
