Marina's small school swimsuit suits her delicate body perfectly. I tickled her neck, armpits, flanks, stomach, groin, thighs, soles of the feet, toes... gently and strongly. Marina writhes in agony and begs me to stop, saying "I can't take it anymore, I can't take it anymore...", but I ignore her. When I reached my limit, she began to convulse. (It took a while for her to come back.) I then made her sit on the desk and tickled her bottom, and her peach butt trembled and invited me. I also gently tickled her ass. She seemed to be feeling it. When I tickled Marina's private parts, which had rough armpit, pubic and ass hair, a pussy line appeared in her school swimsuit.