Unity 3D C# - Buttons Need TO Press More Then Once

This is my code for the GUI buttons

     if (Gameplay == false) {
                     if (GUILayout.Button ("Play Easy")) {
                             Gameplay = true;
                     }
                     if (GUILayout.Button ("Play Medium")) {
                             Gameplay = true;
                     }
                     if (GUILayout.Button ("Play Hard")) {
                             Gameplay = true;
                     }
                     if (GUILayout.Button ("Play ASIAN")) {
                             Gameplay = true;
                     }

                     if (GUILayout.Button ("Quit")) {
                             Debug.Log ("Clicked Button");
                     }
             } 

What is meant to happen is when I press one of those buttons the GUI is meant to away, but what is odd, is I need to press one of the buttons 5 times before it will work and there are 5 buttons making me think the buttons are rendered 5 times, can some one please help? what have I done wrong?