Namtan Daeng(2011)

Original title: น้ำตาลแดง ฤาจะหวาน

Pat has returned from abroad and is staying with her friend Taengkwa at her seaside house. Taengkwa lives with her sex obsessed younger brother, Tong, who fantasizes of having sex with Pat all the time. In the end, his fantasies comes true in a way even he didn't imagine.