An adult toy is provided. The adult toy includes a substantially hollow cylindrical body having a first end and a second end. The adult toy also includes a vagina-shaped element arranged inside the cylindrical body, with an opening. The adult toy further includes a flexible bag arranged between the cylindrical body and the vagina-shaped element, surrounding the vagina-shaped element, such that a chamber is defined between the cylindrical body and the flexible bag. Furthermore, the adult toy includes an air pump disposed in fluid communication with the ambient atmosphere and the chamber, and is configured to provide air pressure inside the chamber. Herein, the chamber is adapted to inflate and deflate based on the air pressure inside thereof to cause the flexible bag and thereby the vagina-shaped element to, respectively, compress and de-compress to stimulate male genital organ received inside thereof.