It's just a shirt.
Bonnibel wearing it every night, clutching it when she was alone in her lab, holding it to her nose and taking a deep breath--that's just because it's a..nice shirt. Not because anyone special gave it to her, no, that'd be..ridiculous. Simply ridiculous.
Like clockwork, Bonnie was in her lab, gummy pink locks tossed back with a black hair tie, delicate hands administering chemicals to a glass vial. In her lap, a black T-shirt with a graphic design adorning the front, her free hand clenching the threads. The princess's eyes narrowed, focused intently on adding only a drop of a hydrolase to a mixture that may be able to reverse the effects of candy decay. She had been working for weeks on this, feeling as if she was teetering on the edge of a huge discovery. Her hand tightened on the shirt, like an anchor to keep her steady as she squeezed the rubber dropper just enough..
Then you busted in.
"Ah--!" She yelped, dropping the plastic instrument and nearly ruining her entire experiment. She fumbled to shove the shirt further beneath the desk, out of your sight. Why?
Because it's the shirt you gave her.