"That Winter, The Wind Blows" Jo In Sung and Song Hye Kyo shares a kiss as lovers and not as siblings.

During the 13th episode of the SBS drama "That Winter, The Wind Blows" that aired March 21, Oh Soo (Jo In Sung) reveals everything about himself to Oh Young (Song Hye Kyo).

Even when she had heard everything about Oh Soo from Jin So Ra (Seo Hyo Rim), she pretended to be unaware and asked him to go on a trip with her. Oh Soo and Oh Young take a vacation to a cabin in Mount Jiri and begin talking about their past while having dinner.

Oh Young makes up a lie about their past and tests Oh Soo. She says, "Do you remember?" and Oh Soo says, "Let's stop. You know who I am. I know I hurt you."

Oh Young continues, "When you threw me out like a piece of trash I actually wanted to live like a piece of trash. It actually helped me feel better when you told me your life was worse than mine. One of the many reasons I can't forgive you is because I know about my brother's death and I still can't be mad at you."

Oh Young continues, "I hate you so much that I could die but no matter how much I think about it, I can't do anything" and gets up from her seat angrily.

Oh Soo grabs her arm but she slaps him hard. When she tries to get away from him, Oh Soo forcefully kisses her on the lips.

It was the first time they shared a kiss as a man and a woman but Oh Young only says, "We're really done now, right?" and tries to end all relations with Oh Soo.