Becca found herself so enraptured by the sensation of stealing Marcus' mass that she didn't realize how far she was taking it before too late. She looked at her now empty hands, a smirk crept over her face.
She was pushing 9' tall after siphoning off what was left of Marcus, she realized she grew less as he shrunk further and further down. Becca's body felt aflutter with a sort of flowing, pulsing energy, she could gather that it had something to do with what just happened, but became preoccupied with getting off campus unnoticed. She snuck out the nearest exit, which was just around the corner, ducking her head to get out the door, she saw the coast was clear.
Taking a less than safe, yet isolated and direct route home to avoid being seen, she made record time. Becca was afforded the luxury of her own apartment thanks to the more than adequate scholarships and grants she had secured. She got through the front door feeling fairly sure nobody had seen her. With a heavy sigh or relief, she leaned back against the door, surprising herself with how heavy she felt. Her mind started racing, so many conflicting ideas about what this could mean for her, but also how could she explain her sudden influx of mass to anyone furthermore, how did her clothes grow with her?
Becca got a deeper understanding of one of the prevalent questions when she walked over to the kitchen, her enlarged stomach had worked up quite the appetite. While perusing through her fridge, she couldn't help but feel like she wanted more of everything in there — subconsciously, she began manipulating the mass of the fridge, transferring what she had taken from Marcus into the appliance. The floor creaked as the fridge gained pound after pound. Becca quickly noticed that she had shrunken down as well, taking her hands off the fridge, it all stopped. She was now standing at a somewhat more reasonable 7', while her fridge had expanded, and was causing some stress on the adjoining countertop.
Becca cackled, she couldn't believe what she just did, but the evidence was right in front of her. She understood why her clothes grew with her now, as they also shrunk with her. It was a purely subconscious act. "It must have been that device." She thought aloud, a smile grew as she recalled breaking it.
Becca returned herself to her original height of 5'6" by transferring most of Marcus' mass into her mattress, but she saved a bit for herself, slightly enlarging her ass and breasts.