Spider-Man. The House Of Venom

“Okay. MJ power test two.” Gwen said to  her phone, “go ahead MJ, try.”

They had reluctantly tested MJ's scream power. It had two problems. The first being that altering her vocal cords and mouth meant she had problems talking for a few days after. With her auditions, she was unwilling to make such a large change.

The second that was it was loud. Even the frequency required to shatter a glass was uncomfortable. It was also difficult to test just how high she could go without causing major damage to the warehouse.

Instead, they were testing just how much MJ could change her physical appearance.

MJ let Muse spread over her and then she slipped back inside and MJ’s skin rippled,

She winced. “Dammit. No that's painful.”

Sorry MJ, we are trying to dull it,

It's fine, we knew it was a stretch.

MJ had asked if Muse was affecting her body, and Muse admitted she was. Cleaning out small cancers and less aggressive but still problematic issues. Muse kept her in perfect health, even to the point of eating any excess calories MJ ate. With Muse and the other symbiotes, the girls would never be anything other than perfect.

It was eventually that she asked if she could alter her biology. And Muse admitted she hadn't thought to try.

“How about eye or hair colour?” Gwen suggested,

Like magic MJ’s hair turned blonde and her eyes changed to blue.

Gwen laughed and switched to the front camera to let MJ see what she looked like.

I can alter your skin tone. It is just a simple chemical, I do not need to alter you much.

“What about anything else?” Gwen asked

I can try, but it requires altering tissue and bone. It will hurt,

MJ grimaced. “She says. Wait, if you guys can talk to us in our heads, can you talk to each other in their heads?”

I have no idea, take Gwen's hand.

MJ held out a hand and while Gwen looked confused she did the same.

Hello, can you hear me? Please do not panic Poison, I am not trying to take your host. Muse asked tentatively. Poison was not known for her pleasant demeanour.

Good, mine! What you want? Poison huffed.

To speak to Gwen, I did not think it was possible. Try MJ, I have succeeded.

Hey Gwen, can you hear me? MJ asked in her thoughts.

Well, this is weird, I mean, I always wanted you inside me but come on. Gwen joked.

MJ laughed, “We should tell Pete.”

“So uh, you can talk, what telepathically?” Peter asked as he sat on the couch across from the pair as they held hands.

“I dunno, kind of. I mean, I can hear MJ clear as day and Muse,” Gwen added.

“So, why?”

MJ stood and her skin rippled dying itself a tanned brown colour, “that's why.” She grimaced as he changed back to her pale white colour, “it's weird and a bit painful but I think I can change more.”

MJ groaned and fell to one knee. As Peter stood she raised a hand, “fuck!” she yelled.

When she stood up her double E’s were now respectable C cups. “That really hurt, but wow.” She giggled as she lifted each one, “my back thanks you, Muse.”

Gwen nodded in appreciation, “So I guess while it’d hurt, you could go right down to A’s.”

MJ shrugged. “That was painful enough, so I doubt I would.”

Gwen laughed, “you could impersonate Pete.”

Peter shook his head but Gwen took MJ’s hand and MJ went bright red.

Muse spread over her and then concentrated down to her groin. Sat there was a perfect replica of Peter's manhood.

Gwen clapped and laughed. “That's it, Pete. We’ve replaced you.“ She grabbed it and wiggled it at him.

MJ giggled as well. “No feeling though. It's just a lump of skin.” She grabbed it and whacked it against her hand like a truncheon. “Still heavy though.”

Gwen pouted, “okay Pete, changed my mind.”

Peter just snorted and laughed. “If Muse can adjust your biology and physique, why can't she make nerves for that? I mean, our armour isn't a sealed suit. We can still feel and see through it.”

MJ looked for a moment, “We dont know how.”

Gwen frowned for a moment and took her hand.

If we can talk, can you transfer our thoughts as well?

Gwen showed MJ what she was missing.

“I'm pretty much pre-med. Drug interactions require a lot of basic biology work.”

MJ frowned for a moment, and then the fake flopping manhood stretched and swelled. It was now completely erect.

Peter stared at it, bemused. “Uh, you know I get the poly and the sharing, but I really dont know how I feel about you growing a dick.”

MJ laughed, “Still a girl Pete,” but continued as she saw his face. “I like you and Gwen and Felicia. I won't. I mean. It's kinda strange.”

Peter shrugged, “it’s not like it's bad, it’s just.” Weird. He wanted to say it was weird that his girlfriend had a fully working penis, but he didn’t know how to. It wasn’t even that it was working, it was just he had no desire to try it for himself and didn’t want to hurt MJ’s feelings. If she decided to explore things with it, she was more than welcome to. It was just not something he’d want to experience first-hand for himself.

Gwen knelt. “No. It's fucking amazing.” She licked the tip and then took it into her mouth.

“Yeah, now it's weird,” Peter said. “Call me when you finish.”

Gwen sat up and frowned. She stood and moved over to him, rubbing a hand on his arm. “Pete, please? Stay, just this once?”

Peter laughed, “You are not sticking that in me.”

Gwen laughed, “not in yours, in mine.” Poison morphed and Gwen was naked.

“Both of us? You know that might be painful.”

Gwen laughed, "Maybe, but Poison is promising to behave, but uh," Gwen moved back over to MJ, “can I?” and MJ nodded.

Gwen knelt back down and began to use her mouth to pleasure MJ, who grasped her head, “fuck, no wonder you love it, Pete.” Gwen had plenty of practice, and as her tongue swirled and licked MJ felt her orgasm build.

He laughed and sat back down. It was definitely different.

“Can you cum, I mean, even if it's just symbcells?”

MJ shrugged. “Stop a moment.” As Gwen looked up at her, "Face?" MJ tried to aim. “Uh, no idea what will,” but she was interrupted as a small spurt of symbcells shot from the end covering Gwen's chest.

Gwen giggled and ran a finger through the white mess. Licking it she shrugged, “oh yeah, good. When you cum, do that.”

She grinned at Pete. “you should learn to on-demand as well, so we can cum together.” She licked the rest of the cells from her chest and began to pleasure MJ again.

MJ was in heaven. It might be fake. It might have been made completely wrong. But she had never experienced what it was like to slide into someone's mouth and feel the warmth of their tongue. It wasn't completely different to oral sex without one and she felt her ass tighten, “shit. Gwen,” she warned her. No wonder Peter knew when he was about to cum.

The orgasm started at the tip, ran down Muse’s length and then shot back up right into Gwen's mouth. Her tongue was relentless and swallowing all the cum MJ was producing.

“Damn.“ MJ said as she leaned back, “that was intense.”

“Can you, uh, go again?” Gwen asked wiping her mouth and MJ nodded,

“I'm good, and Muse can keep it up as long as she wants.”

“Uh Pete.” she asked, seeing the strange look on his face, “you okay?”

“Definitely weird,” he said nodding and sighing. “Not the weirdest thing I've seen, but definitely up there.”

“So, uh, no?” Gwen asked, standing and moving over to MJ.

Peter stood, “Gwen. Everyone has their kinks. I like oral, and you apparently like MJ with a dick.”

Gwen laughed, “it's not like it's a real dick. You gonna get jealous of my vibrator next?”

Peter hadn't thought of it that way. If they had sex as hosts then really he was having sex with the person and their symbiote. He shrugged, “damn battery buzzing bastard, I’ll pulverise him.”

MJ laughed, “God's sake Pete. Fine” She closed her eyes and for a moment the pale pink skin began to brighten and became almost fluorescent. “There, now it's just like a fake dick.”

Gwen laughed, and leaned forwards to kiss MJ, “can we?”

MJ moved and french kissed Gwen. She would taste herself on her lips, and it was the same as Peter. Her tongue explored Gwen's mouth, and she moaned as Gwen's hand began to stroke her once more.

"We can uh, later." Gwen separated herself from MJ and stood, "but, I kinda want to try two."

MJ stood as well, and Gwen wrapped one arm around her shoulder while sliding a leg around her waist. She silently thanked Poison for the enhanced balance, as she was now in a perfect position.

Gwen gasped as it slid into her, it felt real, it felt like Peter, and Poison purred as MJ filled her. “Now, you. Here.” while she had one hand on MJ’s shoulder supporting her, she spread her behind, “in my ass.”

Peter looked at her, grinding on MJ, the look of ecstasy on MJ’s face and shrugged, “you know, what the hell.”

His own clothes ripped and vanished. He gently pressed against her behind. He rubbed the excited entrance and gently pushed inside. He could feel MJ and the pair began to slowly move back and forwards. He slid his hands under Gwen's ass, and Gwen wrapped her other arm around MJ's neck.

“MJ, you doing good?” He asked. Gwen was moaning softly but MJ seemed to have her eyes closed in concentration.

MJ huffed and nodded, “it's,” she huffed, “amazing.” she gasped, "trying not. to cum."

Peter begins to move slowly. MJ was more grinding and he felt her length press against him.

Definitely weird, he thought. 

It was good though. Gwen was tight, and the rubbing of MJ against him as he moved brought strange but welcome pleasure.

Gwen had her eyes closed and was biting her lip. “Harder,” she moaned, so Peter adjusted his stance and slid out and thrust back into her.

Both MJ and Gwen cried out, and Gwen huffed, “fuck, again” as he caught MJ's eye she nodded.

As she slid out, Peter slid in, and soon they had a rhythm, keeping Gwen filled.

“Fuck, fuck, fuck,” she kept repeating over and over again.

Poison had gone silent and was near comatose, unable to drown Gwen in chemicals. Gwen had learned a long time ago that when Poison was sated, she slept. If they shut her up fast enough, she could enjoy moments like this.

“Please," she could barely speak it was so intense. "cum, both, together,“

Peter nodded. Once more they adjusted the tempo. The room was filled with Gwen's guttural moans as MJ and Peter slammed their cocks into her. With Gwen's legs around MJ's waist supported by Peter, they drove deep and hard into her.

Gwen had cum within the first few strokes and now it was a stronger orgasm after stronger orgasm. She could barely speak as each one crested and sent shivers of pleasure through her. As the last one struck it woke Poison.

MORE! She screamed.

Gwen's eyes fluttered and closed as Poison sent the orgasm rippling through every part of her.

Not just Gwen but Muse felt Poison's pleasure and even Peter felt it from deep within Gwen. She tightened as every muscle contracted at once. Gwen screamed out her orgasm and whined as it drove her over the edge.

MJ shuddered. She could feel just how powerful Poison's orgasm was, and how it slammed through Gwen like a tsunami. As it crossed their connection Muse shuddered as well and filled Gwen with cum. MJ felt her vision fade as she was overcome by the sensations. All there was was the tightness of Gwen's pussy around her, and the twitch as she came over and over again.

Muse, unable to cope with Poison's pleasure fell forwards. Gwen and MJ both collapsed but Peter held them steady. He grabbed them both and guided the trio back to the couch, where he slid the pair down.

Cum ran down Gwen's legs, over MJ as her cock twitched over and over, but as Gwen relaxed MJ did as well. She softened and the symbskin melted away, leaving her back with a now cum covered pussy. Gwen dripping over her.

He gently kissed her neck and her eyes fluttered open. 

“I think I died,” she muttered. She leaned back and gently stroked MJ before sliding off and looking for a towel. "Damn, and I thought you came a lot, " Gwen giggled as he had to hold a hand between her legs. The cum was pouring out, dripping over the floor through her fingers.

MJ sighed happily and opened her eyes. “How do you cope? Muse is asleep from whatever Poison did,” MJ said breathlessly. “How the hell do you cope?”

Gwen shrugged, “I have to.”

MJ shook her head and kiss Gwen, ”Sorry. Muse isn't like that. Is Poison okay?”

Peter looked over. “She was hurt when I spawned her, and I really didn't know what I was doing. She might be. I really don’t know.”

Gwen sighed, “We should get the others and discuss this. Symbiotes and sex should involve all of us. Maybe find out if we can do something to help Poison.”

Peter laughed, “yeah 'cause you want to grow a dick and chase Fel with it.”

Gwen shrugged, “so? Think what Liv's going to say.”

Peter sighed. “Yeah, I know exactly what Liv’s going to say.”

MJ sat upright, “oh my god. I can pee standing up.”

Peter blinked, “yeah, not that. Not even close.”