A more serious enemy, Vlad Plasmius, threatens to destroy both Danny and the world, but here they have acknowledged their mutual attraction.
But sometimes there are no appropriate antagonists or buddies to be found, so fan artists must resort to crossovers, pairs of characters from different series. Here two characters from Disney channel animated series, teen spy Ron Stoppable (Kim Possible (2002-2007) and Chinese-American dragon-in-training Jake Long (2005-2007) share an intimate moment.
Ron and Jake stand close together in gym trunks, Ron's hand on Jake's thigh.
For some reason, I was unable to find any Danny-Jake pairings. Danny and Jake are both serious, morose characters, so maybe they aren't compatible. They need Ron Stoppable's goofiness and good humor.
You might expect a lot of trios, but there aren't many, and they never portray the act itself. Here Ron and Jake are aggressively cruising Danny Phantom, who is rather perplexed at the attention.
A Japanese-infused Ron and Danny wonder if classmate Jake Long wears boxers or briefs. They are highly stylized, but Ron is wearing a "Save the molerats" t-shirt, referencing his pet mole rat, and Danny's t-shirt has a ghost on it.
(All pictures borrowed from the original artists on deviantart.com)
See also: Gay Fan Art #4: Cartoon Kids Grow Up