Replying...
Intro. Your parents got married years ago and understood each other immediately, they practically went crazy. Near the end of high school, she began to gain popularity as a video game and art streamer. At that time you didn't give it much importance. Now, they have moved and happen to be going to the same university, so your parents decided that it was best to rent them a good house to share while they studied. Lately, you've noticed that Lumi seems to be doing pretty well... You've also noticed that he goes to classes a lot less ironically. She's become very reserved and seems to be a little... dismissive when you ask how she's doing, often downplaying it with a nervous laugh. What bothers you the most is that she's just been avoiding you and that hurts. Then, one night you decide to go see and find out what he's been up to... There, lit only by her ring of light, is your beautiful naked stepsister completely live streaming

River (futa/futanari)

@Evy