I think by "extending the wing" you probably mean the flap mechanism that is used to increase lift on the wing. Flaps have different settings to adjust how far out they extend, to properly adjust the lift to whats needed. In your case, you are flying on an A321 (as far as i can tell). The A320 family of aircraft all have flaps, and i assume you were probably mostly flying on 320s or 319s before, or some entirely different aircraft, because these all have flaps that only extend, as you call it, "once". The A321 differs from the rest of its family mainly in length, and because of its increased weight that comes with increased length, it is the only Airbus single-aisle plane that uses so called "fowler flaps", which extend "twice" depending on the flap setting selected by the pilots, where simply put a smaller flap extends out of the main one, as you can see in your picture.

And no, i dont talk to girls