You could try 'Passions Beyond Bounds'. The MC's sexual experiences are woven into a complex plot. But keep in mind that these scenes are intended for a specific audience seeking a more adult-oriented story.
Well, there are some light novels with such elements. 'Goddess' Desires' is one where the relationship between the MC and the goddess gets quite intense. However, these kinds of themes can be quite niche.
One such light novel could be 'The Supreme Overlord's Desires'. In it, the MC is incredibly powerful and has some steamy scenes.
The main character in many ayanokouji light novels is Ayanokouji Kiyotaka. He is a complex individual with hidden depths and abilities.
There were a few light novels with the main character being a monster emissary that could be recommended. The first one was "Monster Breeder from the Other World ~ Cultivating with a Plug-in ~", which told the story of the protagonist's experience of cultivating monsters in the other world. There was also "The World's Only Monster Envoy ~ Mistaken as the Demon King after Class Advancement ~", which revolved around the adventure of the protagonist being mistaken for the Demon King. In addition, there was also "The Weakest Monster Envoy Begins a Trash Picking Journey", which described the adventure of the Weakest Monster Envoy. These light novels all used the monster as the main character, bringing the readers a fantasy adventure story.
Perhaps the character grew up in an environment where gender wasn't a big deal, so they don't have the typical fears associated with interacting with females. Another possibility is that the character has developed strong social skills that allow them to handle any situation involving females with ease.
They are often decisive. For instance, they won't waste time hesitating in critical situations. Like in 'Overlord', Ainz Ooal Gown makes quick decisions to deal with threats to his territory. This decisiveness is what often sets them apart from other characters.
One great female main character light novel is 'Sword Art Online'. Asuna is a key female character in it. She is strong, intelligent and plays a crucial role in the story. Another is 'KonoSuba'. Aqua, the female lead, has a very unique and comical personality which adds a lot of humor to the story. Also, 'Re:Zero − Starting Life in Another World' has Emilia as a prominent female character. Her kind-hearted nature and the challenges she faces make the story engaging.
There was a Marvel novel that was related to the main character, the Blacklight Virus. This novel was called " Marvel's Blacklight Virus ", and the author was Recluse Cloudsoar. The story told the story of the protagonist in a Marvel world with many strong people, surviving and surpassing the world through the power of the Blacklight Virus. This novel had already been serialised for 330 chapters, and the latest chapter was chapter 329. If you are interested in other related Marvel novels, I can provide you with more recommendations.
Many sex light novels also incorporate elements from other genres such as fantasy or science - fiction. This helps to create more complex and interesting storylines. For instance, a light novel might be set in a fantasy world where the characters' relationships are influenced by the magical or technological aspects of that world. These elements add depth to the exploration of relationships and emotions.
This was a very special novel because the protagonist eventually became the God of Light. Light Mages were usually a very powerful class because they could use the power of light for combat and magic attacks. In this story, the protagonist had to overcome all kinds of difficulties and challenges to finally become the God of Light. This could be a very fantastical and unique ending. If you like this style, this story might be very attractive to you.