Different shapes for sure. Friend was thinking of acquiring a share in a Supercub, until he tried it on for size and discovered that he had a long torso and short legs.
Fitting parachutes on potential pax in gliders, you soon appreciate the variety of the human frame. Furthermore, the parachute is not designed for the female figure. (I understand they used to do nude parachute descents in California - mind boggles - the thought of not having the leg straps properly adjusted for the wedding tackle brings tears to the eyes....)
Anyway, you certainly should try before you fly, climb in and out of the aircraft, sit in it, make sure you can reach all the controls comfortably. In the case of any aircraft, a seat cushion that protects against impact injury is VITAL. The only time a friend of mine was not sitting on an impact cushion was the time he needed it.
In the case of flying a glider up a winch launch, no soft cushions, please. They may compress and cause you to slide in the seat and depart the controls.
In the case of a Cessna 152, make sure the stupid catch on the seat slides is fully functional, or the seat may slide back and interesting things happen.
Take the time to make sure the aircraft fits your own soft pink body properly before going aloft; its too late to sort it then.