"The library might do well. Girls with their heads in books can be pretty off guard."

Lizzy's idea sounds reasonable, so off the 2 of you go.

It's a fairly standard library, larger than those you are used to, but still a whole bunch of books and a general desire for silence.

"We had best find a girl alone. Less problem that way." you whisper, and Lizzy nods. So you start wandering the building. On the 2nd floor, you find a delicious looking blond in a tank top who is by herself. Great, but ...

You guide Lizzy a distant away and whisper "She looks alert. We'll need a little trick. Now here is my idea ..." Lizzy listens, and nods.

You grab a few books and return to the blond's table. She notes you, but dismisses you as just students with studies in mind, not an early lunch.
You open a book, get out some notepaper and then start padding your pockets. Not "finding" the pen you had carefully put in a back pocket, you lean over and ask the blond if she can loan you a pencil. Routinely she holds one out to you. Not so routinely, you grab her hand and pull it towards your maw.

She may not have expected that, but she was ready for your attempt to make her a snack. She braces and you make no progress in pulling her in. Realizing you were failing, she gives you a superior smile, which suddenly vanishes as she feels Lizzy grabbing her feet.
"My girlfriend was the one who was hungry. I just provided a distraction while she slipped under the table." She answers your smirk with a glare, and tries to get loose so she can fight off Lizzy, but you keep hold of her. In fact, with her no longer able to brace her legs, you have no problem stretching her out on the table. This leaves her helpless as Lizzy swallows her legs.
"Give her a climax, Lizzy" you tell your girl, and you can tell Lizzy is following your suggestion. Her victim is by no means approving of her assault on her pussy, and resists the feelings as much as she can. It only delays things a little. Eventually, she is shuttering as she comes.
It also relaxes her and you start pushing her back to her side of the table, and into Lizzy's mouth. Now, she tries to grab anything she can to slow her slide into Lizzy, but there is nothing solid. So you sit there and watch belly, breast, shoulder, and then head slip beneath the edge of the table. She continues to glare at you all the way. But it does her no good. Soon, all you can see of her is 2 hands clutching the table edge. Idly, you push them loose and they vanish, shortly followed by Lizzy smacking her lips.

Lizzy has captured her 1st girl. That seems worth a celebration. "Don't get up just yet Lizzy. There is something else to do down there first."