Five Minutes Free Write Prompt: stranded on the sofa like whales with a plankton's indigestion

Sianna loved cake- chocolate cake to be precise and that was essentially her only weakness. It was still January and she decided she would abstain from chocolate cake. She wrote a list on Monthly Resolutions and for January the top of her list was no chocolate cake. For two weeks she exceeded her expectation but on the 15th she went to her best friend Tyler’s birthday. Tyler had dared her and decided to get a chocolate cake for her birthday.
“You won’t be able to resist”, Tyler teased.
“Bring it on Sianna”, said determined to maintain self control.
During the party she definitely tried. She made sure she filled herself up. She tried to resist but while her head said no her heart yearned for her true love chocolate cake and when everyone left she gave in to her impulses and ended up stranded on the sofa like whales with plankton’s indigestion.