A sister with a brother complex, jealous of her brother's girlfriend, crosses the taboo line and engages in NTR (Netorare) involving drooling and licking her nipples. (HUNTB-434)

My older sister is an extremely doting brother. She thought I'd behave myself after getting a girlfriend, but I was wrong. She got jealous and crossed a line. Despite my lack of sexual experience, she used adult techniques to continuously tease me. At first, I endured it, but eventually succumbed to her nipple manipulations. I don't even know how many times I ejaculated. Maybe I'll never be able to have normal sex with my girlfriend again!?