They could team up. Maybe they find a common enemy, like a new Sith threat or some powerful dark side entity. Their combined skills in the Force would be formidable. Luke's piloting skills along with Starkiller's raw power in the Force could make them a great duo. They might also learn from each other. Luke could teach Starkiller about the more spiritual and patient side of the Force, while Starkiller could show Luke some new combat techniques he learned from his time with Vader.
In a 'Starkiller meets Luke' fanfiction, they could start as rivals. Starkiller, with his powerful Force abilities, might initially see Luke as a threat. They could engage in an epic lightsaber duel. Eventually, they might realize they have a common enemy and team up. For example, against a new Sith Lord. Their combined skills could lead to a great adventure in the Star Wars universe.
It's hard to say. Luke has the potential of the Skywalker bloodline and his training under Yoda and Obi - Wan. But Starkiller was also highly trained by Vader. If they were to face off, it might depend on the situation. In a battle of pure raw power, it could be a draw, but in a battle of strategy, the one who can outwit the other would be more powerful.
One scenario is that they meet on a desolate planet. Luke is there for some Jedi - related mission, and Starkiller has his own agenda. They cross paths and immediately sense the power in each other. Another is that they are brought together by a third party, perhaps a powerful Force - user who wants to see what will happen when these two strong - willed Force - sensitives meet.
Starkiller in fanfiction, not the 'lemon' kind, is usually portrayed as a character with great potential in the Force. He might be shown as being in a struggle against the Sith or trying to find his own path. His relationships with other Star Wars characters like Vader or Luke are often explored, showing his place in the Star Wars universe.
In the 'ahsoka meet luke fanfiction', they might start as strangers and gradually develop a mutual respect. They could exchange their knowledge of the Force, with Ahsoka sharing her experiences from the Clone Wars and Luke talking about his journey to become a Jedi. Maybe they team up to face a common threat that endangers the galaxy.
In the 'ahsoka meet luke fanfiction', a plotline could be that Luke is seeking knowledge about the ancient Jedi, and Ahsoka is the key to that knowledge. She has memories and insights from a time long before Luke. So, he tracks her down. As they interact, they also face attacks from dark side forces who don't want their alliance to succeed. This forces them to rely on each other and combine their strengths. They might also discover new Force abilities together during their adventures.
How about a spaceship? Perhaps their mother is on a journey of her own, and by chance, their paths cross in the vastness of space. The confined space of the ship would create an intimate setting for their meeting, and they would have to deal with the limited resources and potential dangers while getting to know each other.
In fanfiction, when Luke and Leia meet their parents, it could be a very emotional moment. Maybe they finally understand their family's past and heritage better. They might learn secrets that were long hidden. Their parents could offer them wisdom and guidance that they've been lacking.
Luke might be in awe. He's always been seeking his family and a sense of belonging, so meeting his parents could make him feel complete. He'd probably listen intently to whatever they have to say.