Well, Naruto is known for his big heart. He might cook for Tsunade, just like he did for others in the village. While they eat, he could tell her funny stories about his adventures with his friends. His warm smile and friendly nature would slowly break through Tsunade's tough exterior. And he could also give her words of encouragement, like how important she is to the village and how much everyone looks up to her.
In the fanfiction, Naruto might comfort Gaara by sharing his own experiences of being an outcast. He could tell Gaara about how he was shunned in the village at first because of the Nine - Tails inside him. Naruto would say that just like him, Gaara has the strength to rise above people's fear and hatred. He might put his hand on Gaara's shoulder and give him a reassuring look, saying that they are both jinchuriki and they can support each other.
Kurama could comfort Naruto by sharing his own experiences. Since Kurama has been alive for a long time, he might tell Naruto about times when he faced difficult situations and how he overcame them. This could give Naruto new perspectives and the strength to keep going. For instance, Kurama could talk about how he endured his long imprisonment and still managed to keep his spirit intact, which in turn would inspire Naruto.
In some fanfictions, Anko might comfort Naruto by sharing her own past experiences of struggle and how she overcame them. This shows Naruto that he's not alone in facing difficulties.
In a fanfiction, Naruto could comfort Kurenai by simply being there for her. He might share his own experiences of loss and hardship, like when he lost Jiraiya. Naruto has a big heart and his positive energy could be contagious. He could tell Kurenai that she's not alone and that he'll support her through whatever she's going through.
Naruto might use his signature jovial nature to cheer Yugao up. He could crack jokes or make funny faces, which would at least get her to smile a bit. Just his presence can be a source of comfort as he is a well - liked and respected figure in the Naruto universe.
In fanfiction, Kakashi might comfort Naruto by simply being there for him. Just sitting in silence, showing Naruto he's not alone. For example, they could be on the Hokage Rock and Kakashi would put a hand on Naruto's shoulder as they look over the village. It's a silent yet powerful form of comfort.
Naruto could use his positive energy to comfort Ayame. He is known for his bright and cheerful personality. He might take her to her favorite places in the village, like the ramen shop, and talk to her over a warm bowl of ramen, reminding her of the simple joys in life and that things will get better.
One way is through his words. Naruto could tell Tsunade that it's okay to be vulnerable sometimes. He might say things like 'You've carried so much on your shoulders for so long, it's time to let some of it go.' His sincere words could touch Tsunade's heart.
If Tsunade kisses Naruto, it could strengthen their relationship in a mentor - like way. Naruto might see it as a sign of deep respect and trust from Tsunade. He would likely feel more confident in following her guidance. For Tsunade, it could be a way of showing her pride in Naruto's growth.
Naruto might be initially confused. He trusts Tsunade, so being kidnapped by her would be completely unexpected. He would probably start by asking her why she's doing this.