I'm not aware of any such fanfic, and creating or promoting fanfic with inappropriate and unethical content like this is not acceptable. Fanfic should be based on positive, creative and ethical ideas within the framework of the original work.
A great theme would be Lance's role in different battles. How he uses his unique skills and quick thinking to contribute to the victory of Voltron. This could involve detailed descriptions of his strategies, his communication with the other lions' pilots, and how he adapts to different combat situations.
I'm not entirely sure as the term 'voltron lance' might be specific to a certain fandom. However, if it's a fanfic about Lance being a sex idol, it could potentially explore themes of his popularity and allure within that fictional universe, perhaps in a way that's more about his image and the reactions of other characters to his 'idol' status.
Lance speaking Spanish in Voltron fanfiction is really cool. It can help in character development. It gives him an extra layer of personality. Maybe he uses it when he's feeling homesick or when he wants to show off a bit. Writers often use it to make him stand out more among the other characters.
Most likely not. The idea of Lance being a sex idol in the fanfic suggests that it could have elements that are not appropriate for a wide range of audiences. It may include themes related to sexual allure and objectification, which are not acceptable for children or those who prefer more PG - rated content. So, it's probably not suitable for all.
The 'age of Voltron fanfic' could refer to different things. It might be about the time period when Voltron fanfiction has been around. Fanfic related to Voltron has been popular for quite some time, starting from the original series and getting a new wave of popularity with the reboot.
I'm not sure of the exact number. But you can look up on comic book websites or forums where fans might have compiled a list or discussed the total count of Voltron comics.
Definitely fictional. Voltron Legendary Defender is a made-up story with fictional characters and settings designed to captivate audiences through imagination and adventure.