In Hollaback Girl (1), Mo confides in Jake about Marisol’s ‘official’ comment and admits that they’ve never gone on a real date. Jake suggests that Mo take Marisol out and make it really official.
In Hollaback Girl (2), Mo is worried about his date because he has no way to pay for it. Jake offers to let Mo tag along on a painting job, which Mo graciously accepts with a bro hug. Mo later on asks Marisol if she's excited for the weekend and a sad Marisol bails on the date without giving a reason why. Mo is hurt but goes to the painting job anyway to earn extra cash. On the job, Mo and Jake realize they're re-painting a strip club. Mo takes pictures with the strippers and tweets them to make Marisol jealous, but since Marisol doesn't follow him on Twitter, she never actually sees the pictures.
In Gives You Hell (1), Marisol and Mo bring Jake to be Katie's date when they are playing a board game at Katie's house.
In Say It Ain't So (1), Jake overhears Mo talking about his university application and tells Mo and Marisol that the university applications are going to make their heads explode.
In Doll Parts (1), Mo, Jake, Marisol, and Katie plan to go on a couple's vacation together.
In Doll Parts (2), Jake tells Marisol about Mo's diabetes.
In Degrassi: Las Vegas, Jake and Mo go on vacation to Las Vegas with their girlfriends, Katie and Marisol, after their flight to Mexico was cancelled. Jake and Mo are invited to Drew's bachelor party when they run into him on the plane. In the hotel room, Jake teases Mo by asking him if he is wearing anything under his robe, but Mo says he doesn't expose anything for free. The two head out to get buffet bracelets before the party. At the bachelor party, it is awkward for a while because Jake and Mo are not very good friends with Drew, but it perks up when strippers begin to dance on Drew. The next day, Jake, Marisol, and Mo all hang out without Katie, and later go to Drew and Bianca's wedding. Jake walks out before the service though because he and Katie broke up. On the plane ride home, Jake and Mo sit next to one another.
In Ray of Light (1), Mo and Jake make jokes at Jake's ex, Katie and when she calls them out on it. Jake gets mad and walks off and Mo follows him in concern. Later, Jake and Mo go to a secret party with Eli and Mo gets scared of the dark so Jake tells him to hold on to his waist. When they get in the party Mo and Jake have fun and are seen painting each other.
In Ray of Light (2), Jake and Mo are with Marisol and Katie they are talking to see how long they have to wait for them to make a choice about reopening the green house. Katie then takes a hammer from Jake's truck and climbs a wall to get in the garden. She starts breaking down one of the walls and the rest of them join in. Mr. Simpson comes walking over, then when he sees them he comes running over. He says he was on his way to tell them what the PTA said and it was yes, but after he sees the 4 breaking down the walls, he ends up giving all of them morning detention.
InThe Time of My Life, Mo sets to lock down a "bromance" with Jake before the summer.
Trivia
Both Mo's girlfriend Marisol and Jake's ex-girlfriend Katie are best friends.