But it was easy. I thought they'd all be weirded out ("You're what? Why?" ... or something), but they were all very celebratory.
My dad told The Hottest Computer Scientist in the Universe: "Good job!" as they hugged.
Afterwards, THCSITU had a good question: What's the appropriate response to that?
Perhaps:
"Why yes, I have been putting my penis in your daughter's vagina!"
In-laws this coming weekend. This'll be the first grandkid on that side, and she's bugged us for years. Tears? or hollering? I'm thinking tears.