A bittersweet ending could involve a sacrifice that leads to a new beginning. For instance, Hinata sacrifices her chance at a romantic relationship with Naruto to save his life. Naruto realizes her importance too late, but Hinata is at peace with her decision. In the end, Naruto honors her by living a great life, and Hinata is remembered fondly.
For Naruto, you can show his more romantic and sensitive side. He could be more attentive to Hinata's feelings and needs. For example, he might bring her flowers just because. Hinata can be developed by showing her becoming more confident in the relationship. She could start to initiate dates or activities.
Communication is key. If Naruto finally realizes Hinata's love and they sit down and talk about their feelings, it could start to mend things. Naruto could share his own insecurities that made him blind to her love before.
You can also play with the passage of time in your 'bittersweet mlp fanfic'. Have a story where the ponies grow up and things change. Maybe they start to drift apart because of different interests now that they are older, yet they still hold a special place in each other's hearts. It's about finding that balance between the happy memories and the sad changes.
Well, the lemon element could be used in the form of lemon - flavoured ninja tools. Hinata could create lemon - scented kunai or shuriken that have a special effect on opponents, like making them dizzy or disoriented. And for Naruto, he could use the lemon in his rasengan, creating a new version called the Lemon Rasengan that has a different kind of power. Also, the lemon could be associated with a particular season in the fanfic, like a lemon - blossom season that is a special time for Naruto and Hinata's relationship.
At first, Naruto might be a bit shocked when he finds out about Hinata's hanyou side. But then he would start to see her in a new light. He could encourage her to be more confident in herself, which would deepen their bond.
Hinata would be overjoyed. She has loved Naruto for a long time, so his proposal would be like a dream come true for her. She might start crying tears of happiness and immediately say yes without hesitation.
Hinata might be very hurt. She's a sensitive person, so Naruto yelling at her could make her feel small and sad. She might start to doubt herself and her abilities.
For Hinata, her development could focus on her becoming more assertive. In the fanfic, she could start taking on leadership roles within the clan. With her relationship with Naruto, she could also gain more confidence. For Hanabi, her development could be about her learning to be more empathetic. She might start to understand the feelings of others more, especially her sister Hinata. This could be shown through their interactions, like when they have heart - to - heart conversations.
Perhaps Hinata's Kitsune heritage comes with a set of rules and traditions. Naruto, in order to be with Hinata, has to learn and respect these. This process of him learning about her Kitsune side and adapting to it can create a very special and unique development in their relationship. He could participate in Kitsune festivals with her or learn the significance of Kitsune symbols which are important to her family.
For Naruto and Hinata, their relationship could develop in a unique way if Hinata starts teaching Naruto some of the more refined aspects of the Hyuga clan's techniques. This would create a new level of closeness as Naruto respects Hinata's skills. And with Tenten, she could be the one who arranges little 'get - togethers' for the three of them, which slowly builds a stronger bond between all of them.