I dated a guy from Ireland for about three months. He lives way up in Bumfucksville and I would take the kids to his place on the weekends to see him. His daughter visits every weekend. She is about a year and a half older than first son. She and the boys absolutely adore each other. We still see each other on occasion, because we all especially love his daughter. He loves having the kids over and sometimes I let them stay with him so I can be kid-free for a little while.
I was driving them back from a visit about a month ago.
Me: so did you have fun at Dodd's?
everyone: yeah!
second son: Sammy is my sister....
Me; well, she's not really your sister but, yeah she kinda is... you really liked seeing her huh?
second son: yeah... Saaaaaaammy....
Me: (understanding) ...oh, you really like Sammy?
Second son: yeah.... (dreamily) she's beee-yoo-ti-full!
Ah, youth.