A.N. I know, another lame title...well, maybe at least unimaginative. What happens here is pretty straightforward, some of it even obvious, so I couldn't think of anything else.
Lemonjella and Orangejella obviously went to college, the top one in the state, and continued their education to become scientists. They had a little difficulty in deciding what field of science, but eventually decided on becoming inventors as inventing covers all fields. Despite the fame they achieved, they rarely left the state due to wanting to remain close with their friends. Instead of marrying the guys they went to the prom with, they fell in love with a couple sweet and smart guys from their college and married them.
Jim Kim went to acting college, minoring in behind the scenes work like script writing and scenery making. After graduating from that college he went on to working for a film company that specialized in superhero films, and spent his time helping the company make new superhero movies and TV shows. Eventually his acting ability was discovered by the owner when the owner walked in on Jim's performance of the storyboards for the new animated Green Lantern series. Jim was then hired for voice work. Luckily, due to being very active during high school and college, Jim was now more durable, flexible, and stronger and later moved up to acting in non-animated movies and series. He eventually became a huge star, but he never forgot the old gang and visited them as much as he could. He eventually married Lana.
Gug literally outgrew his inferiority complex and became nicer, but some things about him didn't change. For one thing, he never went to college, deciding to become an athlete instead. He tried various active sports, before deciding on soccer. He did try football and almost picked that, but a trip to the hospital from a broken leg changed his mind. Even though he loves being active and tough, he doesn't like going through pain. He became a great soccer player, and his team won many games, including a few major league games. The best moment for Gug though, was when his team won the second championship they played for. The rest of the gang would sometimes go see his games, but when they didn't have time or when the game was too far away they watched it on television instead. Either way, none of them ever missed a game that featured Gug's team. Gug didn't change his mind about dating during high school, but he did when he got on the soccer team. There was this one girl on his team named Sage that liked him and he ended up liking her back. This soon changed to love and after a few years they got married.
Duncan and Deanna went to a college that taught the deaf and mute sign language so that he could learn more advanced sign languages. Because of this, Duncan decided on a career of teaching other people sign language. He taught the deaf, mute, and anyone with deaf or mute family members or friends. The amount of people who knew sign language increased over the years thanks to him, and among these people were the old gang. Despite being busy with their own careers, they wanted to have more complicated conversations with Duncan, ones that didn't require the short responses that his yoyo provided. Despite learning sign language he still kept his yoyo for nostalgic reasons, and sometimes even used it now and then. He and Deanna eventually married.
As for Shareena and Emmitt, well, obviously they eventually got married, but before we get into that there's their careers to mention. They didn't really go to college, though Emmitt did take astronomy for a year. As for Shareena she started out in acting school but ended up graduating earlier than she expected. A director had been searching through various acting schools and guilds for the right woman to play a background evil witch role in his upcoming picture. When Shareena heard that the director was coming to her school next, she immediately got into character and pretended to take an interest in roasting him for supper. He loved it - heck, he even fell for it for a few minutes - and hired her right on the spot. After that Shareena continued her career as an actress, specializing in horror and dramatic films. Since she preferred horror and drama, she worked for all companies instead of sticking to one company like Jim did. Like Jim she also became famous, especially among the Goths, mostly for her roles as witches in various films. Emmitt decided to work for a nearby company that specialized in searching for alien life, as if this is a surprise. Even though all they found were microscopic creatures in Mars's polar ice caps and small aquatic creatures under the icy surface of Jupiter's moon Europa they never gave up. They knew that once technology improved drastically they would be able to search other solar systems and even galaxies.
A few months after they both started their careers, Emmitt decided to ask Shareena to marry him. He took her to their secret spot in The Woods and proposed, and Shareena accepted immediately. The wedding was perfect, at least for them, though their was a small delay when Shareena tried to stop her mom from making a wedding dress - pink, obviously. Luckily, Shareena was able to find the perfect wedding dress before her mom could finish the pink nightmare (as Shareena called it). The Gothic Central didn't specialize in wedding dresses, but luckily her old friend Vic altered a pretty lavender dress into a gorgeous wedding dress. Since Shareena bought the lavender dress before her mom finished the pink one, her mom had to quit since she didn't want Shareena's money to go to waste. Emmitt again got his tux from The Gothic Central. Vic was invited to the wedding on the condition that he leave his fangs behind so as not to scare some of the other guests; he obliged. After the wedding Shareena had to finish her role in the movie, but since it was only a few scenes she and Emmitt were soon off on their honeymoon to Transylvania. After a month they then arrived back to America in time to see the movie.
After the wedding Shareena and Emmitt moved to a different town to prevent their future children from dealing with Miss Kisskillya (who was unfortunately a long way from retiring). They did have children, a girl named Lilura and later a boy named Kirk. Not wanting to force their views on them like Shareena's parents tried to do to her, Shareena and Emmitt let their children be themselves. Lilura ended up liking pink and such, but agreed not to get everything in pink for the sake of her mother's sanity. Lilura only got a few toys and princess dresses for Halloween in pink. Kirk was more into the supernatural like his parents, but despite their differences Kirk and Lilura got along relatively well (pun intended). The family also kept in touch with Vic despite living in a different town, and in fact did a lot of their clothes shopping at The Gothic Central (even Lilura, she got some lavender and red clothing items from that store). And so it continued for the rest of their lives.