"So you like playing Doctor?" Skye probes cheekily, laying on the full bedroom eyes for Simmons who blushes profusely.

"I am a Doctor." She manages to get out.

"Yeah, but not a medical one, you're more scientific research right?"

"I have studied the human anatomy." Simmons states, running her hands up Skye's abdomen. "I can tell that these are your ribs… and these are your intercostal muscles." Simmons imparts, tickling Skye there, who is now rolling around and giggling like a school girl.

"No, stop it. I'm tied down. This isn't fair!" Skye spurts out between fits of laughter.

Simmons gives in to the girl's pleas and stops. Her hands now resting on Skye's stomach; she strokes the tanned skin there delicately.

Skye licks her lips and there is an animalistic flash in her eyes. In one fluid motion she snaps the handcuffs from the cot sides and pulls Simmon's into her. Their lips crash together in a wave of pent up desire. Jemma meets Skye's hungry kisses with chaste ones at first.

"Stop thinking. Just feel." Implores Skye, prompting Jemma to climb onto the cot and devour her.

"Jemma."

"Oh God Skye."

"Jemma!"

"Yessssssss."

"Wake up Jemma!"

Jemma's head shoots up in her bunk dizzily. "Huh, what, Fitz?! What are you doing in here?"

"I heard strange noises, I knocked but you didn't reply so I jimmied the door." Fitz confesses shyly.

"Well, as you can see I'm perfectly fine." States Simmons pulling awkwardly at the draw strings of her pyjama bottoms.

"You said Skye."

"Hmm?"

"You were saying Skyes name Jemma, in your sleep."

"Oh, was I? Probably some horrible nightmare that she took over the bus." Simmons responds, shaking her head as if to dislodge the delicious thoughts of Skye from her mind if she's ever to seem mildly convincing to Fitz.

"Don't worry Jem, I've got your back." Fitz nods proudly. "You'd better get to the lab, Coulson is looking for that full blood work up."

"I just can't figure it out Fitz, even if Skye isn't other worldly there's no way she could display that much power and have absolutely nothing in her physicochemistry to show for it. When Ward held the Berzerker staff his readings were off the charts." Simmons sighs in frustration. "I'll run the tests again." Setting up a blood slide, she moves to position it under the microscope, only to have it crash onto the floor. "Blast it!"

"What happened?" Fitz wonders, coming around to see Simmons picking up the smashed slide in her hands. "Jemma, don't you'll cut yoursel…"

"Ouch!" She cries lifting her hand up to pull a splinter of glass from her finger causing blood to trickle out over the broken slide on the floor. "Oh my God Fitz, are you seeing this?"

"Yes, Jemma, you should disinfect that cut before it gets infected." He says looking mildly nauseated.

"No. Look at the slide." She points, as all the drops of blood move to form together in one spot on the floor. "I think we found something." Simmons notes, her eyes staring down in marvel.

Simmons makes up another slide of Skye's blood, this time dropping some of her own into the mix. Putting it under the microscope the sample goes crazy. "Fitz, it's regenerating at an exponential rate. My blood seems to act as a catalyst to Skye's." She realises, looking down at her finger to see it miraculously healed. "We have to test this on a larger scale."

"Hey doc, sleep well?" Skye teases, studying Jemma's face.

Simmons turns away, attempting to hide her blush.

"I hope I'm not here for another blood sample. I'm not gonna have much left."

"This time I won't be taking blood from you." Simmons states.

"Not sure I follow?" Skye asks quizzically.

"You haven't eaten for days." Simmons recognises.

"Yeah the food here isn't really up to my usual standards." Skye laughs.

"Maybe I can offer you something…off menu."

Skye gets a devious look in her eye; "Why doctor, you wouldn't be trying to seduce a helpless patient would you?"

Her smile quickly fades when Simmons turns around with a scalpel. "Wow, doc, as far as I know I didn't sign my body away for science."

"This isn't for you." Says Simmons as she cuts a smooth line from her collar bone to the base of her neck, grimacing at the sting. She leans over, positioning her neck right at Skye's mouth.

"Are you crazy, get off me!" Skye pleads, struggling in the cuffs." When a single drop of blood falls onto Skye's lips it's too much to resist. Skye licks it up and launches toward the blood, fangs protruding and sinking into the porcelain flesh of Simmons's neck. Jemma's head falls into Skye's shoulder, her eyes rolling back in her head as Skye feverishly feeds off her.

Skye pulls back, releasing Simmons from her bite.

Simmons stands, shakily; "Why do I feel so…. "pleasant?"

"As I feed I inject endorphins into your blood stream, producing euphoric effects and killing the pain of the bite. It's so you let me feed and don't fight it."

Simmons looks down at Skye. Whose wounds and bruises vanish before her blurry eyes. "What are you?" Questions Jemma.

"I'm a revenant. Your blood healed me. It makes me strong." Skye states. "It's what keeps me alive."

"Why don't you just tell them? They'll let you go if you convince them you won't harm anyone. You could have bitten any one of us and broken out of those restraints at any time."

"I don't want them to let me go."

Jemma's brow scrunches in confusion.

"I have to get to the Fridge. What I need is locked in there, and these:" She nods down to her handcuffs. "Are my ticket in."