Lorna leaning forward and swaying her body slightly (too specific for a title) + tweening and Big belly edit

LORNA LORNA LORNA LORNA LORNA LORNA MY GF LORNA HYPERFIXATION STRIKES NOW

today I just felt like drawing Lorna but got hooked to it and idk how but I ended up making this smol anim in 3 hours,, would like to know how to do tweening animation to make these kind of little movements faster than dragging every sepparated part in a frame and moving it slowy still frame by frame hajwhfbaahksgdh,,,,

sorry I'm kinda unpredictable with the stuff I do :3

Edit: MANY THANKS TO A LITTLE FREN WHO PERSONALLY ASKED ME TO MAKE A TWEENING ANIMATION STYLE VERSION AND HE EVEN GAVE HER NOT JUST MORE JIGGLE BUT A HUGE BELLY HGRAAAGGHGWH

Credits to @Biddybrother on tw for making these ones <<333