Kylie Jenner still hasn't stopped celebrating her 19th birthday, completed last August 10.

On another beach day in the Turks and Caicos Islands, in the Caribbean, the socialite took the

opportunity to show her generous curves aboard a bikini that further highlighted her big butt.

Kylie is enjoying the place accompanied by her boyfriend, rapper Tyga, sister

Kendall Jenner and friends, such as model Bella Hadid.