Fugaku figured out early on that Sasuke was a miniature version of himself when the boy was still young. Sure, the boy took after Mikoto in looks, but personality, it was all him. When he brought it up to his wife she replied in mock horror, "our son will never get a girlfriend then."
Fugaku simply glared in her direction, but his eyes widened in sudden horror, "you're probably right." When his wife giggled in response, "Mikoto it isn't funny, at the rate our children are going we will never be grandparents."
Putting the book she had been reading down, she very seriously looked at him,"darling, don't you think it's a little early to worry about grandchildren? Sasuke is only four, and Itachi is nine."
"You say that now, but it feels like just yesterday that you were pregnant with Itachi. Look how big he is now." He looked horrified at the thought.
"Fugaku, dear, don't worry. Just like you they have their mom to help them get girlfriends."
She was surprised that he didn't look at all offended by her remark. Fugaku instead looked relieved, sitting down next to her, he reached for her hand, "you promise to help them?"
"Of course, what kind of mother would I be if I left it all in their hands? Or worse, in yours." Fugaku's response was a soft smile in gratitude.