It makes Lance more distinct. Spanish phrases can convey his emotions in a different way compared to plain English in the fanfic.
It can introduce a new dynamic. If the other characters don't understand Spanish at first, it can lead to humorous or tense situations. For example, Lance might accidentally insult someone in Spanish thinking they won't get it, but then they find out later.
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.
A lot of the fanfictions about their kiss also explore the reactions of the other characters in the Voltron team. Some might be supportive, while others could be initially shocked or confused. The kiss can also be a symbol of a new era in the team's dynamics, as Keith and Lance's relationship changes. It can lead to interesting storylines about how the team adapts to this new development.
It could be because the author gave him that skill to add an exciting element to the story.
There could be an outside influence like an alien force that is manipulating Shiro's actions. This force might be trying to break the team apart by making Shiro harm Lance. It could also be that Shiro has been infected with some sort of virus or energy that affects his judgment and behavior, causing him to hurt Lance without his true self intending to do so.
One common theme is the overcoming of internal barriers. Both Keith and Lance have their own insecurities and issues that they need to deal with before getting to the point of a kiss. Another theme is the exploration of their different personalities coming together. Keith's more brooding nature and Lance's more outgoing personality can create interesting dynamics in the lead - up to the kiss.
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.
He might be polite but a bit guarded at first.
In this fanfiction, Keith might initially feel out of place when meeting Lance's family. He could be a bit shy or reserved at first.
In such a fanfiction, the team would probably be in chaos at first. They'd have to figure out how to take care of a baby Lance. Keith might be really confused but also feel a sense of protectiveness. Pidge would be curious about how this happened scientifically. Hunk would be the most nurturing, making sure baby Lance is fed and comfortable.
Well, it could be that Shiro is under some sort of mind control. He then attacks Lance without realizing it. Lance is deeply hurt, not just physically but also emotionally. This event might cause the rest of the team to question how to deal with Shiro and also how to help Lance recover. They would have to find a way to break the mind control on Shiro and also heal Lance's wounds and his broken trust in Shiro.