There's nothing like going on a double date with your underage sister and her 25-year-old boyfriend!

On Sunday evening Khloe Kardashian and French Montana went to Chris Brown's concert at the Forum, and a scantily-clad Kylie Jenner and her much older beau Tyga were there as well. Tyga was opening the show for Breezy, and Kylie definitely got special treatment when she walked around the venue with bodyguards.

Khloe and French had just jetted in from Florida that morning, and after a romantic vacation on the beach, it looks like they're very much back on. While Kylie and Tyga do have a pretty significant age gap, it is interesting that we rarely hear about them fighting. Aside from Kimye, Kylie and her bae might have the most steady relationship in the whole family!

Then again, when we recently polled our X17 readers and asked what you thought of their May/December lovefest, 75% of you said it's beyond inappropriate and only 25% think it's fine. Kylie turns 18 in August, so at least she won't have to put up with this forever!