Black Cat was on the roof of the museum. Using a glass-cutter, she cut open a hole for herself to enter the skylight. Lowering herself down on a rope, she grabbed a diamond, and began hoisting herself back up.
"Another jewel for my collection." she grinned, when a web grabbed it and pulled the diamond away. She chuckled. "So you finally showed up, Spidey? How about..." she began to speak as she turned around. Instead of Spider-Man, before her stood the demonic form of the corrupt Gwen Stacy.
"So, YOU are the infamous Black Cat?" she said licking her lips.
Black Cat took a single step back, shocked at the appearance of the demon in front of her.
Before she knew what was happening, Gwen pounced on her, and bound her up in webs.
"Huh? How did you..mph." Black Cat started to question how the demoness had the same powers as Spider-Man, but her mouth was gagged by a web.
"Don't question things, sweetie. All you need to do is give yourself to my mistress. And luckily for you, I know two bitches who would love to help with that." Lifting the bound Black Cat over her shoulder, the naked demoness swung off on a web to meet up with the two symbiote sluts, so they can corrupt the captured thief.
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Janet and Thor discussed their next move, when their ID cards went off, telling them they needed to head to Avenger's Mansion.
"Shit!" said Janet. "It must be Strange and Spider-Man. They must be calling a meeting about Gwen, and my demonic power."
"Don't worry my mistress. With yon amulet, none shall sense though demonic might, and mine Asgardian abilities, will mask mine corruption. We shall be able to enter with none heroes notice our conversion to darkness." the female Asgardian chuckled, while using the handle of Mjolnir as a dildo.
"Excellent. Put that costume on and let's go." Wasp said, as she used her magic to teleport her costume on, hiding the amulet underneath. Thor, put her outfit back on. Her nipples and pussy shuddered from the metal that covered them. The two corrupt heroines headed out, to Avengers Mansion.