Changed this request a bit.
"Nathan was been a car crash. He survived but his legs were removed to save his life. Nathan’s sister Brittany hated to see Nathan suffering. Nathan and Brittany had a perfect brother-sister relationship they hated to see each other in pain. Brittany couldn’t stand to see Nathan in anymore pain so She offered to switch bodies with him, so he could walk again in her body. After they switch bodies Nathan tries to hang out with his friends but being in his sister body made thing harder than he thought. Nathan and Brittany were twins and Brittany tried to dress like Nathan. Because of that Nathan didn’t have to much trouble finding clothes to fit Brittany’s body because all he had to was find is old clothes but in women’s size. The two of them never swapped back."