Sara saw Clara's questioning glance and shrugged. She debated on whether or not to explain that it was Tracey's lab, but decided against it. If Clara knew the small ulterior motive, that Sara wanted to shag here as sort of a "fuck you" to Tracey in her own head, Clara might not want to.
"Some student used to use it as a lab. It's abandoned though." She assured, moving to clear the table, the only space that one could lay down fully. She pushed some beakers off, falling to the floor and shattering, but not really caring.
Finishing the clearing, Sara moved to Clara, wrapping her arms loosely around the older girl's waist. "I think it's time I proved you wrong and win that bet."