Maybe there's a story where Naruto and Tenten are both training a new generation of ninjas. They work closely together, sharing their skills and knowledge. One day, Tenten realizes she's pregnant. Naruto, being the hero he is, decides to help her in any way he can. He helps her find a safe place to stay during her pregnancy, and they both plan how to raise the child to be a great ninja, teaching it about the importance of friendship, hard work, and loyalty.
Well, it could be that Naruto and Tenten are part of a group project to improve relations between different ninja clans. During this time, they become really good friends. Then, in a strange turn of events, Tenten discovers she's pregnant. Naruto steps up as a friend to support her. They might have to deal with the rumors and reactions of the village, but they stay strong and focus on the well - being of the unborn child.
One possible plot could be that Naruto and Tenten are on a joint mission during which they face many challenges. As they support each other through these difficulties, they develop a deeper bond. Eventually, they return to the village and start a family in a more platonic sense, focusing on building a future together and raising their child in the ninja world with all the values they hold dear.