Bruce Jenner is planning to address claims he is to undergo a sex change.

The 65-year-old star, who first sparked transgender rumours after he grew his hair longer in 2013 and was photographed wearing nail polish last October, and his ex-wife, Kris Jenner, have reportedly filmed a discussion about his changing appearance for the upcoming 10th season of their reality TV series, 'Keeping Up with the Kardashians'.

A source said: ''Bruce and Kris address his changing appearance in a scene they shot together. It will be a plot-line.''

The Olympic gold medallist decided to confront the speculation after InTouch magazine posted an edited picture of him wearing lipstick, blusher, and a silk scarf on its front cover last week.

The insider told Us Weekly magazine: ''[Bruce] was upset by InTouch's story.''

Kris and their daughters, Kendall, 19, and Kylie, 17, have been urging Bruce to debunk the rumours for some time.

A source previously said: ''Kris has been pressuring Bruce to issue a statement about ongoing sex change rumours, and she wants it to be a very strong denial.

''She believes that putting out a statement would stop these ongoing rumours, and doesn't understand why Bruce won't do it.

''Whenever the subject comes up, Bruce just shuts her down. This is extremely sensitive for Bruce, and it's his choice not to address it.''