Three cute nieces who came to visit for the first time in a while. Now that they are all grown-up, they cling to their uncle and rub their grown bodies together just like they used to. The uncle had an erotic fantasy of being seduced by his nieces, but... it turned into reality! Mai, a girl with a loli face and big breasts who suddenly straddles the dick and starts shaking her hips, is a little devil who enjoys the reaction in cowgirl position.