In her most recent Instagram pic, Kylie Jenner left little to the imagination, flaunting PLENTY of side-boob while lounging on a beach chair in Mexico!

The 18-year-old is soaking up the sun south of the border after a wild weekend of birthday festivities. She's scheduled to appear at ANOTHER b-day bash this weekend in Montreal, which she's reportedly being paid upwards of $200k to attend!

Scroll through the gallery above to see more celebs proudly showing off their assets!