Note: This is something I had came up with when I was playing Avengers Academy. (BTW: It's a Spider-Man thing.)
Part 1- 'One More Day'? Yeah Right!
Peter and Mary Jane Parker were at the hospital visiting their aunt May, the doctor had told them that she was dying. They couldn't save her. Peter knew it, she was his only blood relative left. MJ grabbed his hand as he was distraught. Just then Mephisto had showed up, Peter glared at the 'Father of lies'. He already knew what to do, May didn't want him to give up his marriage just for her.
"Well, Spider-Man," he said. "I gave you one more day with Mary Jane, what's your answer?" Peter sighed, thought about it seriously, looked MJ in the eye and she nodded she went up to him and kissed him passionately. Something empowered within him and he turned around to face the devil. The took a deep breath, relaxed, let his arms hang from his sides, smiled and kicked Mephisto right between the uprights. "Mummy!" He squeaked.
"Blow me!" He said, "she had a good life, so good you can't touch her and if you do. I am going to do the one thing not even the Avengers could do. Break Your Neck! Now, GET OUT OF MY FACE!" With that, Mephisto struggled to get up and holding his crotch then glared at the Web-slinger.
"I will get my revenge!"
"I'm sure you will. I'll be waiting." With that, he left and MJ just stared at him.
"Tiger, you were amazing!" She said.
"Yeah, I was. I love you too much MJ." He scratched the back of his head.
"I know, which is why this going to hurt me."
"Wait, what do you mean?" Just then another infernal being had showed up. She was dressed in black with red trim, a flared bodysuit with fur at the cuffs and boots that looked cloven hooves. She had long red hair and red eyes. She was beautiful, very well built and curvy.
"Well, looks like the stud said 'no' to my father." She said, "you know what that means."
"WAIT!" Said MJ, "you said I could agree to become a succubus. All I have to do is give you a thousand years."
"Alright, don't worry Spidey. She'll return."
"Wait! You are you?"
"Oh, I'm sorry. Forgot to introduce myself, I am Satana."
"Will you protect her? Promise me you'll protect her."
"I can see why you love him so much now Mary Jane. I promise she will be protected." Peter nodded with that they left.
Part 2 - Mary Jane the succubus
It was a month after Satana had taken MJ to Hell to train as a succubus and Peter was a wreck, May was dead and things weren't going well for the Wall Crawler. Jameson was on his ass all because he wore a mask and just wanted to just murder him. But he had to be the bigger man and not let Jameson bother him. Just then there was a flash of light and out came a sinful redhead dressed like a harem girl.
She had reddish-green eyes and devil-red lips. "M-MJ?" He stammered, she smiled right at him.
"Face it tiger, you just hit the jackpot. Again." She leapt into his arms and they kissed passionately.
Part 3 - Tantric energy
It was five hours after Peter and MJ had finished a sex session. They were both feeling really good, "I don't know what's going out but right now, I am feeling really good." He said.
"Really?" She said, "I guess Mary Jane really is good for you."
"Only if its you," they chuckled and kissed. Peter wrapped his arms around her tightly.
"You know, I don't mind if you have other lovers." She said as he kissed her on the temple.
"What?"
"It's your energy, it's what powers spiders."
"Tantric energy?"
"That's why you feel so good right now."
"So, what? I'm fine with you."
"No, you're not Tiger. Not with what I've seen coming. You will be needed, I can't believe I'm saying this. Call up Felicia," Peter quickly looked at her and felt her forehead.
"You alright MJ?"
"Yeah, I know. I will allow you to have others, BUT only those that love you. You need all the energy you can get."
Part 4 - Catching a black cat by the tail
The next day, Felicia had met Peter at a coffee shop. As usual, she was dressed in black and white and in the latest fashion. "Hello Parker," she said. He stood up, "you said you wanted to talk?"
"Uh yeah, Felicia. Thanks for coming to talk to me." He said, "I have to tell you something."
"Okay what?"
"Well, I want to be in a relationship with you."
"What? Peter, you're married."
"This was MJ's idea."
"Her idea?" Just then MJ showed up, leaned over her shoulder and whispered in her ear.
"That's right, Black Cat." She said, Felicia quickly looked at her and saw she was in a T-shirt, low rising jeans and wedge sandals. She looked at Peter's wife and was instantly turned on. She wasn't into women but, even she could tell MJ was full of win.
MJ went over to Peter and sat down on his lap. "We need your help Felicia, there are something's coming that will destroy the world if Peter can't help." She said. "But for him to help, he needs us. What do you say?"
"I can't believe you're pimping out your husband."
"If I knew he didn't need more than me I wouldn't."
"Is he good?"
"Fantastic," MJ said as Peter was as red as his suit.
"Alright, if it is to help him, I'll do it. I have to try him tonight."
Later on that night, after a dinner for three and an intense sex session, Peter was high as a kite. Felicia was on his left and MJ on his right. 'My God, this is incredible. This feeling.' Then he went to sleep and had met the spider.
"Hello Human!" It said, "So You Found Out How To Gain Tantric Energy?"
"Yeah, look I'm sorry." He said, "I didn't understand what you were trying to tell me. But, I am neither spider nor man, I am Spider-Man." Just then they heard a voice.
"About damn time!" It was an old man, dressed in a black suit, white shirt and was barefoot.
"Ezekiel, what the?"
"I've been trying to teach you this a long time ago Peter!" He said, "now you finally understand. Your daughter's still alive. Osborn has her, now get up and get her back!" Peter woke up, slipped out of his loves' arms, got dressed in his outfit and headed out to Oscorp.
'Hang on May, daddy's coming!' He thought as he took off.
End of Part one
Note: I'm going to break this down into parts and I hope you enjoy it.