One-on-one training with my father, who is a track and field club coach, on an air chair with a 1cm tip - Kana Miyano
At the recommendation of my father, a former Olympic athlete, I switched from short distance to middle distance. However, his record did not improve as expected, and his father trained more carefully than usual. While I was shy, he yelled, "It's for the record..." and began a special training session where he straddled my bulging cock... The athlete's blood that flows through me also tightens my vagina and urges my father's piston...
