Popular models wearing gym uniforms are divided into front and back, tickling each other's sides from behind! It's a cat battle where you compete to see how long you can last! The one who can withstand armpit tickling for the longest time wins! If you give up, you win one. Please take a look at the fighting scenes of laughing and writhing beauties! Beautiful women who can withstand tickling attacks are the best. "Kya!" "I can't do it!" This is a highly recommended work, so please check it out!