His doctor says, "Aye, Paddy, all Irish use three things for what we call a Do-It-Yourself.... Virginity Test Kit.... a small can of red paint, a small can of blue paint and a shovel."
Paddy asks, "Aye, and what do I do with these things, doctor?"
The doctor replies, "Before ye climb into bed on your wedding night, you paint one of your testicles red and the other blue.
If she says, "That's the strangest pair of testicles I ever did see...",
Spoiler:
