the not so crimson string, luffy x reader

everyone's born with a string that connects them to their other half. the enchanted red string pulses with an ethereal inner light, like captured starfire woven into silken thread. Unlike ordinary rope or twine, it seems to be made of pure luminescent energy, shimmering between translucent and solid as it responds to the emotions and proximity of those it connects but sometimes theres more than meets the eye.