Peter began to argue that he's not Spider-man, a sex god or that they were his sex slaves. He started to but as Harley worked his cock, Elaine tried to steal his tonsils and Carmilla and Pam were using their tongues and lips to give him a bath... he began to forget why he was objecting.
'I mean other then my girls popping in the gym and ruining my secret identity, but Pammy likely let loose some pheromone to make the other men forget what they saw. Or be too horny to remember properly. You think they could wait till we got back home.' he thought as he continued to enjoy what his ladies were doing.
As they did, their costumes became more sexual in shiny latex or leather like materials in some places and shimmering silk or similar in others. Boots gained high heels if they didn't have them, and got higher if they did. Nails became longer and painted in attractive colours, as perfect make up highlighted their perfect faces. Even as their clothes highlighted their perfect sexual bodies. Their breasts also became a minimum of a C-cup, but would cause them no problems.
Meanwhile, Peter changed a little. Muscles more defined, cock longer and thicker but not enough to hurt any woman he was with. It was just perfect for looks and utility for it's job.
A side effect of the Amo/Cupid/Ero/erotes treatment to increase lust and desire as well as other forms of bonding along with the love they desired. While lust wasn't love, it was connected and related. A good sex life could lead to a good love life. As well as it prevented the hero from rejecting the villains, which would prevent their mission from succeeding.
As Cupid watched, he noted, 'Diana was easier given her culture... but also the fact she was likely not to fall completely for the spells used on this mission. We had to tread carefully with her. Most morals do not have divine gifts, especially divine gifts of truth, to protect them. Which is why we'll be able to... 'convince' them to accept their gifts.'
Cupid then decided whether to trade places with an monitoring erotes, having the minor love god look after things here while Cupid made more matches. Or stay and watch, while his minions worked on other heroes and villains.