Lucius & Narcissa & Draco
Draco already loved his baby sister, there was no way that wasn't going to happen even if it was an odd kind of situation. He loved Bella instantly and was pleased to be part of the family.
"Of course, you're perfect aren't you kiddo?" he grinned stroking a free finger over her little cheek. "No way she couldn't be really" he grinned, "You only produce perfect children" he teased Narcissa.