Oil Slime

You found a barrel of "Oil" on the side of the road, and when you get out of your car and over to investigate it you find it to be heavy. assuming its filled with Oil you put it in the back seat of your car (the car is old so you dont care if it gets dirty) on the way home the Barrel Shakes (sounding like something other then oil is inside) but you ignored it (cause you were too busy thinking about how much you money you'd make for selling the Oil) after like 1 hour of driving you arrived home (it was already like 6pm when you found the barrel of "Oil" so you went home) after you'd parked your car and gotten the barrel of Oil out of it the lid of the barrel busted off with great force, and inside sat a female Oil-Slime (the story starts after the lid of the Oil barrel busted off)