How I Know My Son Was Not Switched At Birth

We are cut from the same cloth. His humor cracks me up.

Gavin: Mom, I think you jinxed me.
Me: Why?
Gavin (with his index finger and thumb an inch apart): You told me about puberty and now I have hair growing in places and it's like, this long.

At the Cummins family reunion one of the descendants was handing out homemade glass necklaces as memorabilia Gavin said, "I want one" so I told him to go get one. He comes back to the table and said, "I had to tell them it was for you."
Me: "Why, were they not going to let you have one?"
Gavin: "I didn't want them to think I was transgendered or something."

At the hotel watching a little late-night television, an erectile dysfunction commercial comes on. Old men, holding oddly shaped crooked, curved vegetables..."if your erection looks like this, see your urologist." I look over to see Gavin's reaction, and he is blushing and giggling and replies, "It's funny, they're using vegetables."

At the zoo for summer camp...
Me: How was your first day?
Gavin: Boring. But I met a girl! She is like a female version of me so that's cool.

Footnote: At 18, you still meet girls that are the "female version of you." But you have yet to have someone steady enough that we know about it, claiming no time, or interest.