Draco Malfoy and the Half-Blood Prince's Daughter
They were meeting secretly. He would kiss and touch her like a boyfriend does to his girlfriend. He would pull her to broom cupboards, alcoves or even to the RoR. She had no idea what kind of relationship they have, so imagine her surprise when she woke up in her parents' house with him by her side - snuggled against his chest. HEA. Complete.