"A TAIL!" Jimin's yells woke you from your sleep the next morning and as you stretched, looking at his pale, shocked face in confusion before you tried to wiggle your toes to instead find a pair of fins.
Your old seaweed-green tail was flapping on the mattress and Jimin was sitting on the floor in surprise, before he slowly crawled forward and stroked at the dry scales, "does it hurt? Did the spell wear off?"
You shook your head and stared at it before hot tears began to trickle down your face, rubbing at your eyes furiously trying to stop them you lay back on the bed and pulled the sheets over your face, "I don't know." But you did know, the spell was giving you a warning that it was running out.
The bed dipped as Jimin sat next to you, and you felt his hand begin to stroke your shoulder as he tried to comfort you before he made a sound of realisation, "Y/N, you know I studied the mermaids for years," you made a sound of acknowledgement before going back to thinking about having to return to the sea in shame.
"I think if I kiss you, the tail should go," you peeked out from under the covers and raised your eyebrows at him, watching Jimin's face brighten up in his usual smile you tried hard to hide your own. But it was too late because he'd already seen it, and so he caught your hand that had been gripping the cover and pulled you up and into a hug.
"I love you regardless of what form you take," he grinned at you and pressed a kiss to your hand, "seriously princess, things like a tail won't stop the fact that I absolutely adore you." You blushed and pressed your face forward, into his shoulder in the attempt to try and hide your expression.
And yet, Jimin knew, his hands cupped your face and he looked you in the eye with a smile, "can I kiss you, princess?" You frowned at him before leaning forward and kissing him, your eyes squeezed shut as you hoped to open them and see a pair of legs again.
A faint tingle began to spread through your legs and pulling away from Jimin, you kicked off the sheets to find your legs were back. It was silly how much you had missed being able to wiggle your toes, and your eyes widened at how human you were becoming.
