Buy high quality sounds and use lots of lube. *note* if you don't sterilize everything you could end up with a bladder infection. Patience plays a large role in stretching the urethra. Listen to your body; if it hurts; stop.
Yes it is possible to stretch the male urethra.
This is usually done for either sexual reasons or medical reasons but both require similar techniques. The instrument used to stretch the urethra is...
when doing so, always remember to use lube, never force it will lead to tearing, and its not pretty, sanatizing is important, and make sure she is relaxed, there will be urine, so make sure that you...