The second time. He was a little more relaxed and prepared. So,was I if im honest. I slide it in a few inches. Just over the 5 into the beginning of the 6. Then I took his hand and made him touch his cock. Feeling the rigid hard metal inside the penis is an amazing feeling for me. So, it must feel even better if its your cock. He did respond after by getting an erection with it inside him. I stroked his cock a little but not too much.
The third and fourth times, were just what we'd both imagined it would be. I masturbated him with the sound. The fourth time I even massaged his prostrate at the same time which he said was an indescribable amazing sensation.
Before we began this process I scoured the internet for first hand experience from others. I found this website im going to share. If you plan on trying sounding. I recommend reading this first.
http://barkingshaman.com/2012/08/21/how-to-use-urethral-sounds/