I haven't written any fanfic in ages but the first paragraph of this bubbled through my head today before I decided to just go a short way with it
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Around mid-afternoon two-year-old Willy Adama would wander into his father's office unsupervised. Those moments drew only brief immediate attention from Lee, as his son never did anything other than climb immediately into his father's lap. Willy had become quite adept at doing so without jostling Lee's writing hand, or any papers he might be reading. On these occasions the two would sit quietly together, with Willy's head resting on his father's chest. The quiet would last until Lee finished whatever small portion of the item he was working on demanded to find a logical stopping point. Then he would put aside his pen or his papers.
"Hi Willy."
"Hi Dada."
The exchange was followed by Lee reaching down to kiss his son's head, and then turning to open a drawer beside them. Out of the drawer came a sketch pad and a box of large markers. Sometimes Lee wondered why Willy insisted on this activity with his father. Surely Kara would have been a better match. Their youngest persisted in making this activity for him and Lee only no matter how many times Kara had sought to join them. Lee had eventually even had Kara give him a few drawing lessons. He'd had to admit to himself how relaxing the half hour or so he spent with his son was.
One of Lee's two older children joined them at the end of that period, and they would then move to the overstuffed chair which sat in a private nook at the corner of the office. Another half hour was spent in reading to his children. If Rissa joined them it would be a children's fantasy story. If it was Charlie the story would be one about Earth's pioneers. On rare occasions The other child also joined them, which meant Kara had an engagement away from the house. It was then that Lee would read from a children's Colonial history book.
While the two older children went to school on the compound their history lessons there also taught of the country that now sheltered them. Their mother had taken on the role of assuring a solid background in their own people's history and culture. So when Kara wasn't there Lee took on that role.
The small interlude was sacred in the Adama household and everyone along the way to the President's door facilitated as necessary. At the end of the reading period a small snack was provided for the busy father and his children. Then the youngest two would be off for a nap, while if Charlie were in attendance he would return to his schoolwork in the big chair. Sometimes Lee would even catch sight of him glancing through one of Joseph Adama's law books.