Watch Sister's Taste for Free: How to Stream the Movie Online at 123Movies. . Jun-ho and Da-hee bumped into each other on the street. The two fell in love and confides with their friend Min-soo. Knowing that the two will miss each other, Min-soo spends his last sweet moment with Da-hee, his sex partner, and arranges a place for them to meet. The hot story of Da-hee's choice between two men who think that friendship is the most important, is just beginning.