You thought with all your might, and after a few minutes (and headaches) you managed to willingly morph back into the goo.
You had no idea what you could do as this, but you knew it should be easier to slip around.
You slid a few miles out of town, and found the military facility.
You tried sliding through the gate, but you got an intense shock to yourself; the fence is electric. It makes sense, water conducts electricity.
You saw a woman driving up to the outside parking lot; judging by her clothes, she seemed like she worked there.
"Maybe I can slip into her body and possess her...like in the movies." you thought. You careful slid over to where she was parking, and waited.
She parked, and opened her door, ready to exit.
You jumped from the floor and into the car, and slid into her mouth. She put up a fight, and you managed to control at least her left arm and hand. You used this to close the door and lock it, so she won't get out and cause a scene.
With this new limb you have control of, you put it over her mouth, since she was trying to spit you out. You forced her hand onto her mouth, and a few seconds later, you gained control of the rest of her body.
"Woah..." you said, in your new feminine voice. "That was a new experience. I didn't think it would work."
You looked down at yourself, and saw you were wearing a black skirt suit, with matching black heels. You saw that there was a purse to the right of you; you looked into it and found an ID card specifically for the base. You pinned it onto the jacket of the suit, and walked out, unintentionally gaining her thoughts, skills, and memories, making the walk in heels not all that difficult.
"In you go, ma'am." the officer at the gate said, opening the door.