A few days ago Shboogoo told me, "Cousins are boys." I'm not sure what our conversation was like before that. I had to point out, "You and L are Eli's cousins, and you're girls." They do have a female cousin that they see every month or two, but she's not a young kid anymore. She has a brother as well, so that's a boy cousin. My brother has two sons and now my sister has a son. (None of my husband's siblings are married.)
On October 9th we got five of the cousins together.
I also got some pictures of my kids with their newborn cousin (and Shboogoo's best friend) at my house.