"Bruce had thought Justin was hanging out with Kendall, his 18-year-old daughter, with Kylie just tagging along and he was fine with that. But when he learned that Bieber had taken Kylie to Las Vegas... he hit the roof," a source explained, "and immediately called [estranged wife] Kris Jenner, fuming."
Don't think Kylie didn't hear about it, either. ''Bruce then phoned Kylie, forbidding her to date Bieber ever again bluntly declaring her doesn't want her influence by his drug use and bad behavior," the source added.
"Kylie went crying to Momma, but Kris, who's usually all about the publicity, shocked her by siding with Bruce. She totally agrees Justin's bad news.''
Around the time of Kylie's Vegas trip, there were rumors she and Justin were a thing. That talk seemed to fizzle when he was spotted with her friend Yovanna Venutra afterwards.
Do you blame the Jenners for stopping her from hanging with the Biebs?