Anyone else cum super fast with their wife?

I used to be a 2 pump chump. As a swinger it was embarrassing.
But when I got older I started taking sildenafil (generic viagra) and a nice side effect (for me anyway) is that somehow it increased my stamina. Has any one else experienced this on sildenafil?
 
I am a quick cummer. On a good day I can last maybe 5 to 10 minutes. her favorite guy would fuck her for at minimum 20 minutes until she had earth stattering orgasms. very humbling seeing a man with a bigger and more potent cock satisfying the love of your life. happy for her and made me relish the cuck lifestyle.