Naruto would probably feel really bad about it afterwards. He's a kind - hearted character, so he might immediately try to apologize to Anko. Anko, on the other hand, would be very angry at first. She has a strong personality, so she might lash out at Naruto or storm off in a huff.
Naruto might be very confused as to why his actions led to Anko's humiliation. He might try to make it up to her by offering to help her improve in the areas where he outperformed her. Anko could react with a mix of anger and sadness. She might feel that her reputation as a skilled ninja has been damaged. She could also start to doubt her own abilities, which might lead to her either working harder to prove herself or sinking into a bit of a slump for a while.
Anko might initially be very angry. She has a prideful nature, so being humiliated by Naruto would make her want to lash out. She could challenge Naruto to a rematch immediately, vowing to make him pay for making her look bad.
One possibility could be that Naruto uses his new jutsu in front of Anko in a training session. The jutsu is so powerful and unexpected that Anko is left looking rather foolish. For example, Naruto might have developed a new type of shadow clone jutsu that has some unique properties. When he uses it against Anko during sparring, she is completely unprepared and gets outmaneuvered at every turn, leading to her humiliation.
One possible plot could be that Naruto accidentally humiliates Anko during a training session. Maybe he uses a new jutsu that backfires in a comical way and makes Anko look silly in front of other ninjas.
Sakura might be initially shocked and a bit jealous, but she would probably come around to support Naruto as a friend. Kakashi would be more of a calm and collected figure, offering advice on how to handle the situation both as a ninja and as an expecting father. Sasuke, on the other hand, might be indifferent at first but later show some concern for Naruto's well - being in this new situation.
Naruto would likely be extremely hurt. He trusts his friends and comrades deeply, so Anko's betrayal would be a huge blow. At first, he'd probably be in disbelief and try to talk to Anko to find out why she did it.
The village would probably be quite surprised at first. Since Naruto is a very important figure in the village, his relationship with Anko and having a baby would be big news. Some might be excited as they would see it as a new hope for the future of the village. Others might be a bit cautious as they would wonder how the baby's powers and influence would shape the village's future.
Naruto might be a bit shocked at first, seeing the usually tough Anko in a vulnerable, drunk state. He would probably try to help her, like getting her some water or finding a place for her to rest.
Naruto would probably be extremely hurt at first. He values friendship and loyalty a great deal, so Anko's betrayal would be a huge blow. But he wouldn't give up. He'd likely try to talk to Anko to find out why she did it, hoping to change her mind.
If Naruto does figure it out, he could be really flattered. He might see Anko in a whole new light. But he would also be a bit confused because he has always seen her more as a senior or a friend. He would probably try to handle the situation gently, not wanting to hurt her feelings.
Anko could see Lemon as a potential ingredient for some kind of ninja potion or trap. Naruto, on the other hand, might just see it as something fun to play with. So Anko would be trying to use Lemon for a more practical purpose while Naruto's actions with Lemon might end up causing some comical or unexpected situations that Anko has to deal with.