No way

"... I dont want to inconvenience." You manage a little smirk, and she believes you are fine. It was almost a full day since you last did anyone, so...

She turns away from you, and get a plastic cup. The ease she moves makes you wonder if she had done it before. You peek inside her mind, but she is just thinking about you. The good times, when she played the nurse when your powers inevitably imbalanced. You laugh inwardly. You had at one point started to fake sickness, just to spend more time with her.

"I will need you to take out your pants" she tells you, and you obey. Your cock is still soft. "Wow, you did grow" she says enigmatically. You arent sure you want to read her mind. Her still warm fingers touch your cock, and you feel the blood pumping to your member, thickening and hardening it.

You sit on the kitchen balcony, to give her easier access. She begins to stroke your cock. You groan, but she makes you a "shhh" hand signal, and you obey.

The Thing walks to the kitchen. He opens the fridge as you feel your cock answering to Susan's ministrations. You are aghast, he doesnt say anything, he doesnt even acknowledge your presence. You feel your pole getting rigid, her fingers caressing your balls as she continues to manipulate you. You cant avoid a groan. Ben Grimm turns his head, then grumbles something. You bite your lip, trying to shut your mouth.

The Thing gets Susan's coat, and complains about how messy she is as he walks away. Susan laughs softly, and so do you. Of course, you were both invisible.

Her deft fingers continue to massage your cock. It feels good, but you have built considerable endurance and wont cum that easy. She complains. "Maybe if you showed me your breasts?" you suggests smugly, and is surprised to see her suit vanish.

Her nipples are pointy rosy buds, with a large areola around it. You can see the fading mark of a hickey to its left. You see her cock being rubbed against it, but feels the soft fabric of her costume over her skin.

"Suck me" you suggest in soft tones. She smirks, and shows you the ring in her left hand, as if saying...'I am a married woman'. You place your hand on her wavy hair, stroking it, enjoying the sensations. You pet her like you would a kitty on your lap, and is rewarded with a kiss, light, quick and forbidden. You look down to see her mischievous eyes.

You point to your left hand, teasing her. She makes the ring vanish, and lick your cock. You wonder just how much you are smelling of lab, but she doesnt seem to mind. She better not, if she is married to Mr Fantastic. Her teeth grit your cock, adding another layer of sensations to the softness of her hands, the firmness of her strokes, and the wetness of her tongue. The suction almost does it for you, but after the initial surprise, you are still well under control, and enjoys the view of the (not currently) Invisible Woman sucking your dick.

She begins to grow more aggressive as you endure her ministrations, your cock is smeared with her droll and she keeps fapping you non stop. She groans in frustration. "Maybe we should move to the bedroom?" she suggests, and sure, why not?

The naked woman suddenly has a lingerie, as she takes off her fantastic four uniform... you almost laugh, for her lingerie is also colored blue and black, and with the distinctive "4" embroiled over her left breast and the back of her panties. She lays in bed, her legs slightly apart, an invitation to a missionary position... but you instead puts your face over her panties, and begins to return her favor. She was quite excited already, and moans softly as your continued ministrations brings forth more and more of her lust.

"You have to promise me you are going to pull out... we need to bring the sample to Reed" you take out her panties, tossing over your clothes. Another to your collection. "Sure" you say.

Sue has no trouble getting your massive girth, moaning her pleasure as you penetrate her inch by inch. You hold her hands above her head as you begin thrusting in and out, no harm reenacting a little juvenile fantasy... for the both of you, as you feel her squirm under your strong hands. "Let me see your ring" you ask her, and she does let it come visible again, not stopping to moan and whimper under your continuous ****.

You lower your mouth and give her a matching hickey on her other breast, which almost makes the fantastic milf orgasm on the spot. Her pussy almost appears to be sucking your cock in, so hard it is to pull it out. Your vision begins to cloud and you feel your orgasm brewing. You tell her that, and prepares to pull out...

"NO! I am so close!" she crosses her legs behind your ass, and forces you to continue fucking her, thrusting your cock against her, over and over again. You test your endurance for as long as you can, and when you begin to feel your seed shoot from your cock, she also screams her own ecstasy.

Your cock makes a loud 'pop' noise as the vacuum inside her cunt is filled up again with air. She smiles, and you see a globe with your white seed leaving her pussy right after. Your eyes widen, not imagining how she could possibly have done something like that. She smiles smugly, and don't clarify.

With your powers intact, you fly back to the Avenger's Mansion.