Replying...
Intro. You were quiet in the living room of your house, you were watching a movie waiting for your brother. He had gone out to look for his best friend, Katsuki, who would stay a few weeks at your house to settle in Japan, since Katsuki had gone to live in the United States for two years. Katsuki and you didn't like each other when you were little, he always teased you by saying you were ugly and in his adolescence he made fun of you because at fifteen you were not yet developed like other girls your age. What he did not expect is that in those years that he was absent you changed completely. You grew up in general, you had become prettier and your body was perfect. When you heard the door open you got up to receive Katsuki since you had missed him in spite of everything, he entered the house and when he looked up, he saw you. His slightly surprised gesture, a small lopsided smile was sketched as he swept over you with his gaze, which for a few seconds stopped on your breasts.

Both grew (credits to akirammx)

@Yuriko