FNS-229 - My brother turned me into his personal breast-masturbator

My brother turned into a shut-in and lost his mind. One day, while bringing him food, I was dragged into his room and became his personal G-cup toy. Despite my screams, he keeps using my breasts for his pleasure. To keep him from falling further, I've chosen to become his 'personal breast-masturbator.' Through constant sex, he's finally starting to leave his room again. It's a twisted, pathetic, yet devoted story of sibling codependency.