As a hikikomori, I can't leave the house, but I have a sexual desire, so I keep making my sister give me a blow job. I kept making my sister, who was scared of me and unable to resist, give me a blowjob every day, but it seemed like she had secretly felt it through a blowjob, and her love juices were overflowing so much that it caused a stain on her futon, and it was like a puddle! When I touched my younger sister's body, which was upset when her embarrassing stains were pointed out, she felt so good! Furthermore, when I forced my dick in, I cum over and over again, even though I was reluctant, so I cum inside her over and over again!