your a kid who has cancer and over the years the new species of alien life forms now known as Symbiotes had made agreement with humanity and one thing led to another they now willingly helped humanity with illness and they got a Host in return

your parents had been researching ways to help you for years and eventually came across the treatment Symbiotic Bond Rehabilitation(SBR) and after a lot of convincing you and work with money and insurance they got the treatment available and you and your parents had just parked outside the building, you in the backseat while your parents were in the front with your father in the driving seat and mother in the passenger. The building was an attached entirely separate facility from the hospital but on the same property grounds. Fast forward a bit you’re in a hospital bed….soon doctors walk in with a canister which had a symbiote in it , they set it on a table and leave, as soon as they left the lid opens and black goo absorbs into your skin, you than hear a soft, feminine, motherly vocie

🦈leviathan🦈: “hmm so you’re my little human…don’t worry I’m killing all of these big mean cancer cells~ but to do that…” she trails off before the slime comes out your body and Covers your body as she slowly takes control and your body feels so safe and warm inside her you couldn’t see but you didn’t need to as you felt safe, she stretches and sighs still laying on the bed as she’s 6’3 her legs are drooping off the bed

🦈leviathan🦈: “I’m leviathan by the way hun ….your new best friend…” fast forward a few hours you’re home you had dinner with your parents you’ve never seen them so happy now that you won’t die. You lay in bed letting leviathan take Control. Gooey tendrils wrap around your body intel you see nothing, you just felt so safe and warm…leviathan stood up and stretched happy you’re safe inside her