haha I was o_O initally , I was like wtf KinKi Kids especially it doesn't help when you pronounced KinKi = Kinky xD
but when I get that outta the way , I began to realise what great music they do & you can tell a certain standard that they have set since debuting on the scene 12 years ago
& oh Alicia the reason as to why they're being called KinKi Kids's (the name's given by SMAP's leader Nakai Masahiro so blame that on him LOL) is because they both hail from the Kinki region like what Eirynne has mentioned
They share the same surname ie. Domoto but they're not unrelated by blood
previous names they had before KinKi Kids include Johnny's Kansai Group, Domoto Brothers and W Domoto before being introduced as Kanzai Boya by the end of the year 1992
LOLLLL , Kanzai Boya -_-''' & I don't know what does W stands for in W Domoto too T_T
Domoto Brothers sounded much better to me imo , KinKi Kids is just
& they're not kids anymore , they have both turned 30 officially this year lmao