Two days and one night in Spartan training to increase sensitivity! Nipple development hot spring trip, Eikaku Sora FNS-001

Eikoku's pink nipples have an unknown level of sensitivity. She possesses F-cup breasts, and her nipples are perpetually erect, leading her on a nipple-training hot spring trip! Sensitivity-enhancing nipple stickers are applied in the car to make her nipples more sensitive. Under the stimulation of an electric brush and nipple cups, her fair breasts are exposed to strangers. Her nipples are pinched, rubbed, and licked; her sensitive body trembles with the stimulation. When a penis penetrates deep into her uterus, she screams and experiences repeated orgasms...