Use anything that seems like it will fit or be just a little too large to fit and go to it.____________This is not at all a wise thing to do. It is very likely you will get a bladder infection from putting anything into the urethra that is not sterile. If you have never had a bladder infection, they are very painful! You could tear the urethral wall requiring surgical repair so you don't leak urine all the time after the tear, but sometimes even after repair, there is still leaking so you'd have to wear diapers. And those are just a small number of the concerns and reasons not to attempt this. Perhaps the prior answer above is confusing vagina and urethra...if looking for pleasure, putting things in the urethra is not the right place.
the urethra
The prostatic or membranous urethra
prostatic urethra
Dilating the urethra is done when there is a stricture (abnormal narrowing) of the urethra in order to make the urethra wider.
The urethra.
The urethra; it is located between the clitoris and the vaginal introitus in the vulva.
urethra basically near the penis but its the urethra
Urethra has three regions in males, the prostatic urethra, membranous urethra, and the spongy urethra.
the urethra which runs down the center of the erect penis. The urethra is also used for urination in both men and women.
There is no defined region of urethra: it begins a at the bladder and ends at the head of the penis. The external urethra, the area that you can see, is called the meatus.
Females have a very short urethra coming off the bladder. The male's is longer because it has to go through the penis.