I think I have a hermaphrodite rat please does anyone have any pictures?

Help! I can't tell if it is or not. I have two boys who are roughly the same size have rather large testicles; where are the one assumed as being a hermaphrodite has barely noticeable testicles. Yet, at first I thought it was a female because the urethra has an opening underneath it.
Update: yeah the pictures weren't too great for me because my rat doesn't have two urethra's but she/he seems to have a hole under the one urethra..like i said and the semi testicles. i shall be going to see a breeder tomorrow to find out wish me luck!
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