Bruce, 64, who has two daughters Kendall and Kylie, is said to have dyed his hair and kept long nails, reported Contactmusic.
"Kylie and Kendall just don't know what to think. It is extremely confusing for them to grasp. There is just no denying Bruce's recent physical changes, and he does look more feminine," a source said.
Kylie allegedly did not like her father's look as her friends are making fun of him.
"It's been especially hard for 16-year-old Kylie because some of her friends have made jokes about Bruce's looks," the source added.