Simplicity way of love
The greatest gift given to them is being with each other - an unbreakable bond, unconditional, lifelong friends. Her way of expressing her love for her baby sister.
Side notes:
Generally, it is never easy to make a toddler (especially un-cooperative ones) do anything. Adults can ask them, guide them, spot them, try and bribe them, but ultimately, they may do exactly what they want to do. And do not put high expectation if you would expect the photos similar as display in ChicChug’s social media. Every moments shall be unique to individuals.