==Personality== Lewis' personality is unique compared to most of the other male characters in the series, He is talented, smart, and always willing to help out others when they are in need of assistance as well as being reliable and can always keep a secret no matter what. This led Emma, Rikki, and Cleo to have Lewis' trust of their mermaid secret. Most of his time is spent helping the girls in tricky situations when ever it comes to their mermaid secrets and protecting them as well as trying to discover the cause of their transformation. [[File:Lewis3.jpg|thumb|Lewis]]Lewis likes to think of himself as a gifted scientist and enjoys building many types of inventions such as weather analyses and recycling units which he has tried to win 'young inventor of the year of award' once. He also has a taste for fishing that he often does in his past time as well as inventing his own fishing lure. He also takes part in fishing competitions. Lewis can be pompous and somewhat controllable at times which means he can get on people's nerves, such as Rikki who tends to mock him about his scientific explanations, saying that there pointless and distracts her from her social life. another example is in the episode Riding for a Fall when he built of food recycling unit and was demonstrating it in the Cafe, Wilfred became angry with him because it was scaring his customers away. Because he is well organized, He and Emma get along well with each other because of their similar personalities.On occasions, Lewis can be considered to be somewhat of a loner, since he does not interact with many guys, He and Zane have spent time with each other to help out the girls with their secrets, but are not exactly close friends. In one episode, Nate told Lewis that because he spends most of his time around girls he begins to act like one. Lewis is not a stereotypical guy and does not get involved in sporting hobbies such as surfing, motorbike riding and diving Like Zane, Nate and Will do, still Lewis does not tend to mind this and is his own self with Emma, Cleo and Rikki as his friends. Because of his caring, and friendly personality his is more acceptable and liked by many people (except Nate), In the episode [[Season 1: Episode 06: Young Love|Young Love]] When Rikki and Emma ask if they will be paid for getting him equipment for his brother's plant nursery, Lewis replied Only with my caring friendship .===[[Cleo Sertori]]=== [[File:Normal bscap454.jpg|thumb|right|Cleo and Lewis kiss]] Lewis and Cleo have been friends since they were young, and have each others trust and faith. Lewis is the first person that Cleo would turn to for advice, and he has helped her out on many occasions. Throughout the first season they were shy to let out there interest for each other until they revealed their likings for each other and then they both become a couple, but shortly they break-up, but stay friends and remain a little embarrassed.He began dating [[Charlotte Watsford|Charlotte]] after his break-up with Cleo which made things very difficult to help the girls and spend time with Charlotte. When Lewis and the girls discover that Gracie was Charlotte's grandmother that leads her to Mako Island and learns the girls' secret, she steals Cleo's locket and says that Lewis would have nothing to do with her anymore. Lewis breaks up with Charlotte after discovering this and goes to look for Cleo who ran away because of it. After finding her, the two of them renew their relationship.In series three, Lewis and Cleo continue to be together. They also try to figure out how the water attacks the mermaids during the full moon.Lewis is given the chance of a lifetime with an opportunity to study overseas. But he's interrupted from telling Cleo by [[Samantha Roberts-Sertori|Sam]] and [[Don Sertori|Don]] surprising everyone and announcing an early wedding ceremony. When [[Kim Sertori|Kim]] learns about Lewis' impending departure, she sees an opportunity to sabotage the event and breaks the news to Cleo. Distraught but determined, Cleo focuses her attention on organizing the entire ceremony for Don and Sam on her own, outside the caf Show less «