Kylie Jenner shows off her curvaceous derriere in purple bikini as she continues birthday festivities with pals in Mexico

The teen, who just celebrated her 18th birthday on Monday, jetted to Joe Francis' private estate Casa Aramara in Mexico to continue the festivities with some beach and poolside frolics.

Kylie appeared to be modeling herself on her 34-year-old half sibling wearing a high-cut bikini which showed off her ample curves.

The teen wore a purple bandeau bikini with high-cut briefs

The purple two-piece featured a bandeau style top and she accessorised with a gold watch and choker as well as several stylish bracelets.

The TV star was joined by pal Pia Mia and hung out by the pool showing off a cornrow hairstyle - a look she first wore last month causing controversy when it was slammed by 16-year-old actress Amandla Stenberg.

She showed off the look in a SnapChat clip the same day and was seen snuggling up to Pia, 18, in bed with her hair braided tightly with blonde strands infused.