This is my baby brother, Troy.
Okay, I know he's not a baby anymore. I can't even say my "little" brother anymore, as he's quite a bit taller than I am. I can say "younger" though. I'll always be able to say that! Or I could say he's my age minus 2 years and 364 days.
Ahem. So, my baby little younger brother just had his Junior Prom. He had a lot of fun. He went with his girlfriend of about six months, Margie.