Marilyn decides to draw off the extra gas. This takes some time and she must tote the gas to the lab as well. By the time she is done, you have a raging hunger.
Marilyn is sympathetic. "I think I see the solution to that coming right now," pointing to a long haired brunette approaching the parking lot. Like many of the lasses at this school, she does not bother with clothing and you can see she will be delicious. "By the way, Pauline is already reforming in the specimen room, so these experiments will mean I will be having more assistants than I have had in a long time. I do want to thank you for your help. And I will be keeping you well fed." That part sounds great to you.
But now your meal has arrived, and Marilyn asks her "Excuse me miss, but could you help me with a short manual dexterity test?"

Seeing a woman with a clipboard, the lass sees no reason to refuse. "Thank you. Now this test just involves removing a auto gas cap. You take it off, transfer it to your other hand and then stretch so the gas cap is as far as possible from the gas line while you are still touching the gas line. I will be measuring time and distance. Ready? Go!"

The girl quickly removes the gas cap, but that is where you step in. That appetite of yours is like a vacuum, and you eagerly pull her hand down your gas line, "swallowing" until you reach her shoulder.
"Stop! What's going on here?" your victim protests.
Marilyn informs her "You are being recruited for the cause of science. You are now specimen...54860. Hold still, please..."

"Ow!"

"Very good. Now drink this." Seeing the food hesitate, she continues "This potion causes you to reform in the specimen room. The alternative is that you become gas and I just drive until you are consumed."
The explanation hardly satisfies the lass. In fact she makes several unladylike comments. But she drinks.

"Very good. Now your name?"

"Demi"

"..Demi..., Fine. Gia, you may pull her on in now..."

Which you do, despite her efforts to resist. It is a little hard at first to figure out how to expand the gas line so she can enter, but once you get the idea, she flows down despite her efforts to slow you down.
She tries bracing with her other arm, but she has a bad angle and you watch her sad face as she enters your pipe. As you had hoped, she tastes wonderful and you are eager to get more of her down. As she tries to use her legs to stop you, her shoulders and chest enter, creating new and very pleasant sensations. Now her belly slides in and she is unable to resist, tho she continues to try. Her hips slow you down for only a moment, and then you start down her kicking legs. Finally only her feet are outside, and that only for a moment. Then Marilyn is putting your gas cap back on and you are converting Demi into fuel.

Marilyn hops into the driver's seat and the two of you drive off. "We are going to raid another school for specimens. Think you can eat several at once? Or do you want to absorb them?"