Surprise for stepbrother, let's do it while parents are not at home!

I went back to my hometown to see my parents. I didn't want to visit home right away, so got a hotel room. Texted only to my little stepsis Princess Lili that I'm in town and want to surprise parents. But this little perverted brat has her own surprise for me! Oh my God, how she's grown since the last time I saw her, when we were little. Grown, I don't mean her height! (with subtitles)