Bruce Jenner's first ex-wife supports his decision to change his appearance.

Chrystie Scott, who was married to the 'Keeping Up with the Kardashians' star for nine years before their split in 1981, says she and their two children, Burt, 36, and Cassandra, 34, don't care that the Olympic gold medallist has grown his hair long and was recently spotted wearing red nail polish.

She said: ''I support him in whatever he chooses to do. I just want him to be happy.''

Chrystie claims she and Bruce, who split from his third ex-wife Kris Jenner in October 2013 after 23 years of marriage, are still close.

She told Star magazine: ''We see each other on and off at family event. He is a very proud and present grandfather. We all support him.''

Kris, 59, previously branded rumours Bruce wants to become a woman ''silly.''

Earlier this year, she said: ''They've been saying that since the '70s, so you'd think it'd be cooked by now.''

The former athlete, who underwent an operation to reduce the size of his Adam's apple earlier this year and has had other cosmetic surgeries in the past, also has daughters Kendall, 19, and Kylie, 17, with Kris, as well as sons Brandon, 33, and Brody, 31, with ex-wife Linda Thompson.