Washington, June 27: Daniel Radcliffe has revealed that he turns to his `Harry Potter' co-star Emma Watson for relationship advice.

Radcliffe, 21, also admitted that they would help each other compose texts to the most recent flames in their lives.

"(We are) very much like brother and sister... We would help each other with relationship advice, particularly funny were the moments when we would help each other compose texts to the most recent flames in either of our lives (not too flirty, but not too subtle either),"Contactmusic quoted him as telling America's Vogue magazine.

Radcliffe added that although he was grateful for Watson's help, he said that neither of them are matchmakers when it comes to the opposite sex.

"It was certainly a case of the blind leading the blind, but it was extremely funny," the young actor added. (ANI)