I practice stretching and muscle training in pairs with Ms. Rukawa, the female ace of the track and field club. I felt the scent of her hair and the softness of her breasts during the close-up training, and when I saw her pussy sticking out from her bloomers, I pressed the tip of my erect cock against her crack through her bloomers and stimulated her by inserting 1cm through her bloomers. Ta! I'm pretending to be practicing normally, but is this an invitation for penetration? ! Eventually I can't hold back anymore and insert it fully! It felt so good to have my cock on the verge of exploding after it was inserted 1 cm through her bloomers in cowgirl position...I became addicted to Mr. Rukawa even though he had a girlfriend.