My first time and also my first time with a WL was similar even though they were more than a decade apart.
Maintained an erection for nearly 2 hours and couldn't cum :/
I think it was due to the massive amount of wanking that had desensitized my penis.
The WL was an expensive one in Vegas, she rode me hard for 2 hours and loved it. I saw her again later where she stayed for an extra 4 hours at no charge, bought me drinks along with a bag of coke which I had to finish off before heading to Boston.
I don't have that issue anymore, I think it was nerves along with cutting down on porn/wanking lol