ai mukai, who lives next door, met her son's childhood friend, hiroki, after a long time. she accidentally saw his impressive cock and couldn't help but get aroused. when she approached him casually, she found that he had an insatiable cock that never tired no matter how many times he came. ai was fucked all night and came countless times. since then, hiroki, captivated by her mature sex appeal, visited her every day. no matter day or night, he kept coming at her relentlessly, and eventually, ai's body couldn't take it anymore.