Dating A Twin

[McMouse]

I used to date a twin and people would ask how I knew which was which.
I said it was easy because by girlfriend had a cute mole behind her left ear and her brother had a beard.

[johnny.5]

bi girlfriend ?
Freudian slip ?

[Hopkirk]

Reminds me of the one:

What do you call an uncircumcised Jewish baby?
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a girl

[dustypuss]

:-)