Old Mutants

Fearless Defenders #9 featured several male heroes who were one-time romantic interests of the female members of the team. In the mix, Sam Guthrie (better known as Cannonball) found himself caught in a love triangle with Danielle Moonstar (who was affiliated with this fearless version of the Defenders since #3).

Sporting their original yellow-and-black school uniforms, the likenesses of Cannonball and Moonstar appeared in New Defenders #129, when the Secret Empire forced the New Defenders to (appear to) battle the five earliest members of the New Mutants at Charles Xavier's School for Gifted Youngsters. Though only a mental illusion, the sequence nonetheless illustrated how poorly the teenage heroes fared against the relatively seasoned members of the New Defenders.

With the passage of time, of course, the original New Mutants have long been experienced enough and capable enough to hold their ground.

This image comes from the opening page of New Defenders #129 (March 1984), published three decades before Fearless Defenders #9 (Nov. 2013).