Kim Kardashian sure knows how to look stunning and hot in a bikini.

On Saturday afternoon the reality show star showed off her perfect curves in a tiny flesh-toned two piece as she relaxed by a swimming pool while on vacation in sunny Costa Rica.

Kim shared this vacation time with her sister Khloe and her assistant Stephanie Sheppard.

She is sexier than ever:

Looking perfect: Kim Kardashian wore a bikini when lounging by the pool in Costa Rica on Saturday afternoon

Not too much fabric: The 36-year-old had on a skimpy flesh-colored two piece

More hotness: Also with her was sister Khloe, who wore a maroon one piece suit

Not covered: The E! queen wore a thong style bikini bottom that exposed her backside

Another look: The ex of Reggie Bush bent down as she stood next to Khloe. On their table was sunscreen and iced tea

Cooling off: The Selfish author also waded in the infinity pool; here her bottom is seen popping out of the water

Her sister deserves a double take: Khloe looked lean and mean as she was oiled up