Hello, I am 27 year old. I am passionate in all aspects of my life. But when it comes about sexual life I get doubt. I had been in relationships with two three girls and I had physical relation with them too .i have been always enjoyed my sex life and all partners are also happy with my performance. But in life I have tried twice - thrice paid sex with escorts and I got surprised that I couldn't do any performance as I didn't get such feeling and it's affect on erection of penis. I don't know why but I am very much passionate with my girlfriends and at same time I don't get erection in penis when I try to indulge with escorts. I am but worry. Is it normal?