I seriously need help with my sister?

she is 10 years old im her brother. She ask this boy in her cl she really likes said to him to take off her cowboy boots so she can feel more comfortable in school. Also asked him and me to give her a piggy back ride in school she said because I am a princess I dont feel like walking. And for recess wont play 2 hand touch in football because she said I am afraid of getting hurt. People wont think Im cute anymore