A hesitant fist hovers, ready to knock on the hard surface, when suddenly the door swings open revealing a small child with a huge smile plastered on her face. "You're here, finally!" She beams up at him, haphazardly brushing her orange hair away from her eyes. He can't help but let a grin fill his face at her anticipation. Bunching his pants at his ankles, he crouches down to her level. "You must be Margret." "Actually, only my daddy calls me that when I'm in trouble," she explains with an assertive tone. "So you can call me Margo." "Well, Margo, it's nice to meet you. I'm Louis." or the single father harry and uni student nanny louis fic where if it wasn't for a little red headed spit fire they wouldn't have met