My stepsister is plagued by hypersensitive erogenous zones all over her body, easily aroused by the slightest touch! HUNTB-691

I received a plea for help from my stepsister: "I react very intensely to things easily, so I'm shy and can't have sex." It turns out she has extremely sensitive erogenous zones all over her body; even a light touch arouses her. She also asked me to help her improve her physical condition, so I started touching her body… Unexpectedly, the touch was even more intense than I imagined! The thought of improving her physical condition vanished, replaced by an atmosphere of extreme excitement! As a result, we went beyond just touching; we even engaged in authentic sexual acts that effectively improved her physical condition!