JKStyle's latest releases have me thinking of the beach.
Kourtney has a 6 colour option huds for the knotted t-shirt and shorts.
hair: Exile::Rain or Shine: 9. Extremes
eyes: Mayfly - Luminous - Mesh Eyes (Midnight Hazel)
skin: Glance Anais August
top&shorts: ::JK Style:: Kourtney
sandals: Pure Poison - Jolie Sandals - Black
nails: Flair - Nail Hud Add On - Slink Avatar Enhancement - JuicyBomb
pose: Glitterati - 219
Kaycee comes with a system bralet in 2 colours(black & white), a mesh tie-front sweater with 6 colour options in a hud and a mesh denim skirt in 5 colours via another hud.
hair: [LeLutka]-POCAHONTAS hair/Naturals
top&skirt: ::JK Style:: Kaycee v1
sandals: Pure Poison - Daisy Sandals - Nude
pose: Glitterati - 292
Get them at the JKStyle stores here or here or here.