I was told and have read that sex links don't go broody. I have a black sex link (Lilly) that went broody 5 weeks ago and after two weeks of her really showing interest in being a mom I told my husband let her keep the 5 eggs she has it's only 5 eggs that will be down the drain. Well, she stole other eggs total of 16 and she has so far hatched out 4 beautiful baby's none are hers. She don't care she is an awesome mom she tells them where food and water is. It's funny, so much for them not going broody now I have about 6 or 7 other hens wanting to be a mom now too. They check in on her and her baby's every time I go check on her. We do have her blocked off from the rest of the flock. But, they can still see her and her baby's.
But, may not be a great thing since more want to follow.