The Australian siblings ' who recorded a cover of the ABBA classic 'The Winner Takes It All' for UK TV show 'Beautiful People' in 2008 ' want to work on a new project together as their voices complement each other so well.
Kylie told The Sun newspaper: "We would definitely love to do something together again or many things in the future.
"My favourite thing that we have done together is a comedy sketch show in England a while back. She and I speak the same language ' we have both been in showbiz a long time. We know the ups and downs of it."
Dannii ' who recently left her judging role on the UK version of 'The X Factor' and has enjoyed moderate chart success with her own singing career ' has previously said she used to feel inferior to her big sister because Kylie has had such a huge string of since she first moved to England in the 80s.
She said: "When I first came to England it was hard because it was Kyliemania. She was this cute little thing and I was the fat, ugly sister.
"Can you imagine for years being asked what it's like to be Kylie's sister?"