Chitose, wanting to reaffirm her appeal as a woman, accepts her son's invitation and decides to go on a hot spring trip for the first time in a while. As soon as her son arrives at the guest room and starts taking off his clothes, Chitose follows suit and ends up in her underwear. Her son's gaze is fixed on his mother's mature body, and Chitose, witnessing his dick getting hard, cannot hide her excitement at seeing a penis after so long. Taking her son's dick into her mouth and enveloping it with her pussy, the two give themselves over to desire and pleasure, copulating many times. We present this hot affair born from a forbidden relationship on this hot spring trip.