You must be registered for see images
All the messages we have gotten about devil fruits awakenings are different based off of what type they are.
For paramecia its too add your power to your surroundings
You must be registered for see images
For a zoan its to completely submerge into your animal form gaining almost immortal level resiliency and a monster form with unparalleled strength
You must be registered for see images
And for logias Presumably add an attribute of their element to their enviroment
You must be registered for see images
I.e Crocdile can dry out what every he wants and black beard can absorb what ever he wants
So no assuming doffy didn't turn the buildings into strings but just instantly gave them on contact the properties of strings then its not that he can create strings but force the things around him to obey his devil fruits power. Now assume Kuma ( A paw paw man) had the same awakening and could repel what ever he want, the same way doffy could make strings out of whatever he wanted. It would explain how he a man whose power maybe is just to reject things away from himself would be able to Transfer someone else's pain.
Now apply this to luffy. The environment around him wouldn't become rubber but you would see it begin to behave like rubber and not just physical things abstract concepts like pain, space, time, natural factors of size or strength or fatigue and once they pick up luffy's malleability he can bend them like an extension of his arms and legs giving himself an new form or even slowing down time or stretching space out to increase or decrease distance
Deus ex flexilis
You must be registered for see images