How much is 17-year-old Kylie Jenner getting paid to model her 25-year-old boyfriend's underwear? Much to PMK's dismay, Kylizzle is probably doing it for free...

The reality TV starlet posted a handful of sexy snapchat photos of herself prancing around in Tyga's Crisp boxers line, and even though she's underage, we feel like it's not out of line for us to say that she looks totally sexy. I mean, she can't post photos like this and expect us NOT to think that!

While we've been slamming the Tyga/Kylie romance from the start (not just because of the age gap -- we're just as put off by the fact that he left baby mama/former Kim K BFF Blac Chyna to be with the teen reality star), Kylie's stepbrother Brody Jenner has been even more vocal about sharing his disapproval of their relationship. Well, so it seems.

The other day Brody Instagrammed a somewhat pornographic illustration of a tiger licking a brunette girl's lady bits. The gal in the pic looks just like Kylie, and the caption reads, "Licking 4 my keys." Wish we had a translation for that one!