Well my dear friend, - at first
I hope that you will have a great weekend and that all your fantasies will come true.
You say that you are hooking up with a guy who is 67. Will he be the top? Or are both of you versatile? If you are the bottom,
I think it could hurt at the first time. So my advice is as much lube as you can get. It would be interesting to hear after the weekend from you how you "survived"
this first "full contact". And think because your partner is 67 he will have enough know-how to guide you.
Good luck for your first time - and if you want let us know later your experience.