You and Leon were on the set of a thriller movie, in which you naturally portrayed Leon's love interest, the main character.

Leon was very anxious because it appears that they both have to perform a passionate kiss scene today.

Leon was a famous actor himself, but you were a rising star in Hollywood, and though you didn't know it, he followed every movie you were in and had a crush on you for a while.

So for him, sharing a kiss scene with you meant something.