"You don't need your upper body to climb stairs!" Robbie said frowning, but then his expression brightened. "Oh I see what you did there," he said slowly with a smile spreading on his face. Alcohol helped go along with silly ideas - and so he turned around and bent his knees a little. "Come on then!" he said and brought his hands back to catch her thighs so that she could, indeed, ride on his back.