Hope Van Dyne and Cassie Lang Have a Day Off

It's been a very eventful month since Natasha Romanoff and Riri Williams had their dick duel, the video taken by a hidden camera in Riri's dorm room had gone absolutely viral on the internet. Now all over the world, futa girls were having similar challenges with each other and it didn't matter what relation they had to each other, or where they were.

Mothers and daughters were going at it, and one of these incestuous duos had even gotten married to one another, girls were going at in nightclubs, and supposedly Natasha Romanoff had gone off and had more dick duels with other college age girls.

And one day the stepmom and stepdaughter duo of Hope Van Dyne and Cassie Lang were lounging in the sun on a beach out on the west coast enjoying each other's company. Cassie turned 18 a month ago, and now she started to wear some skimpier outfits that showed off more skin, more of her body, and especially her package.

And even Hope was wearing some revealing outfits lately too, with the dick dueling craze happening, she wanted to be ready for whenever any futa dared to challenge her. She even had an incentive to win as she could make deals to where if the other futa lost, Hope could use Pym Particles to shrink their package permanently.

Although, today had been pretty boring. Even though both ladies wore red bikini tops with matching thongs to show off their nearly equally sized tits, asses, and bulges, no one had once come up to them, or even complimented them.

Cassie turned on her side and looked at her stepmom and said, "Ugh, this is so boring. No one's ever gonna come up to us! Hope, you said this was gonna be fun, but all it's been so far is me getting pent up! I need to cum so bad, but there's still laws against masturbating in public!"

Hope turned to face Cassie and said, "Well, if you're that horny, we could always have a dick duel ourselves. After all, girls do it clothed all the time, and with us in our bikini thongs, we can have a visual indicator of how much one of us has came. The first of us to cum so much that it gets on the outside of her thong has to pay for the hotel room. Deal?" Hope said as her bulge started to twitch slightly.

Cassie replied with, "Deal." And stuck out her hand to shake and confirm the wager.

Hope took her hand and grasped firmly before shaking. She then scooted closer to her stepdaughter to the point where their massive bulges were touching.

"I hope you're ready, because we're not stopping until there's a winner." Hope said as she gently grinded against Cassie's bulge.

"Oh yeah, I'm ready. Bring it old lady." Cassie said as she crossed her arms under her chest, pushing her breasts up slightly.

Now Cassie started to thrust her hips to grind against Hope's bulge. To keep their positions working without ever separating, each woman wrapped her arms around the other's wide hips and squeezed their thick exposed ass cheeks as a way to brace themselves.

Both their faces turned bright red as the hormones of the woman right in front of each other entered their body and made them even more turned on.

Cassie started panting and wheezing out, "Yes...yes...yes...cum...cum...cum..." she really did need this after all. She was so horny, her mind was already starting to slip to just thinking about cumming.

"Wow Cassie, I can feel you throbbing in your thong. Now tell me, how badly do you want to cum?" Hope asked.

"So badly! I NEED TO CUM! I NEED IT, I NEED IT, I NEED IT!" Cassie screamed as she creamed her thong, feeling it all sort of pool in her thong and soak into the fabric, but none shot out of the fabric, which was good for her and her bank account.

Cassie's tongue rolled out of her mouth and her eyes started roll up into her head as her primal lust took over and she grinded harder and harder against her stepmom's bulge.

"Aw, you look so cute all lustful like this Cassie. Come here and give me a kiss while I cum." Hope said as Cassie immediately took the chance to give her stepmom a sloppy french kiss.

True to her word, Hope came in her thong, feeling it cover her shaft and soak into the fabric of it just like her stepdaughter did.

Now Cassie was squeezing and kneading Hope's round plump ass and continuing to make out with her stepmom. She was so turned on, she just wanted to cum and cum and never stop.

To Hope it almost felt like Cassie was in heat with how much she was grinding, to the point she was practically humping.

Cassie couldn't hold out much longer and screamed into the kiss as she busted again, this time, all the cum flying out of her thong onto the red towel she lay on, covering it in her milk.

Hope separated from Cassie's lips and said, "Aw, my big girl already came through her thong. Well, just let me get off and then you can buy us that hotel room where we can have some real fun, m'kay?"

Catching her breath and coming back down from her sexual high, Cassie responded with a stutter, "O-okay."

Hope then continued grinding against Cassie's body until she let out a groan as she came again, her load shooting straight through the thong, matching her stepdaughter.

"Mmm, alright. Now we can go to that hotel room you're so generously paying for, right?" Hope said, basking in her afterglow.

"Yeah yeah, let's go. There the real challenge can start Hope, don't get too cocky." Cassie said as she stood up and stretched, showing off just how much her thong was stained from the cum.

Hope got up too, picking up her purse in the process. and then they both grabbed the towels they had been laying on, wrapped them up and walked off the beach, their bodies jiggling to whatever hotel they may end up at.

*****

When the two girls arrived at their hotel room, the first thing they did was strip out of their bikini tops and thongs, discarding them right under where they stood, on the opposite end of the room by the windows, their already erect cocks aimed at the door.

The two girls took a position they had seen in the viral video that started this whole trend and they started to grind against each other.

As they ground their cocks together, Hope remembered something she had brought just for this situation: Pym Particle disks.

She looked at Cassie and said, "Hold on, let me grab something from my purse that'll make this even better for both of us."

Hope walked over to her purse and rummaged through it before pulling out two small round disks with a blue center to them. Cassie knew immediately what those could do since she had used them firsthand to shrink a cop car not too long ago, and she wasn't entirely sure what her stepmom had in mind, but she had some ideas.

"Here, how about we make the game better by making ourselves able to blast more?" Hope said as she practically slammed the metal disks into both of their balls, making them instantly grow to the point they forced their legs to be spread apart as they reached to their knees, each one churning up huge amounts of cum.

Cassie moaned as she could practically feel every last bit of cum moving around in her sack. That was when Hope started grinding again, their large sacks colliding sometimes, causing a slight jiggle and a light sloshing sound as their cum moved.

As they went, Hope started to moan too, and she looked at her stepdaughter and decided to grab and squeeze her ass as payback for Cassie doing it to her on the beach. So, Hope reached her left hand over and started to squeeze and knead the plump booty.

"Poor girl, you look like you're about to bust. Here's we'll do it together, okay? I wonder how big our loads will be? I've never cum after using the growth particles." Hope said as she looked at Cassie.

"I, y-yeah. Cum. Let's cum." Cassie said, her mind numbing from pleasure again, Hope took note of how much that had been happening today. It made her stepdaughter seem even more sexy in her opinion.

After just a few more minutes, both girls felt their bodies seize up as they shot the biggest loads ever out of their cocks, moaning and screaming in pleasure. Their blasts lasted for two minutes, dousing nearly every last inch of the room in the cum of the two girls. As it kept going on, each girl became too overjoyed with pleasure and started to laugh as they just kept cumming and cumming.

By the time both girls were done, so much cum had been shot out of them that the television would never work again from how deep into the circuitry their baby batter had gotten and there was a small stream going under the door of the hotel room.

Cassie collapsed to the floor, her balls keeping her legs spread wide as she felt another disk bounce off of them, instantly reverting them to their normal size.

She looked up to see Hope, with her balls back at her normal size.

"Mmm, now that was relieving. We are so doing this again sometime. We can call it mommy-daughter bonding time. We can stay here a bit and then go home. After all I need to catch my breath. That was a lot." Hope said as she sat down next to Cassie and embraced her and giving her a kiss as they basked in the afterglow of the biggest orgasm either of them had ever had up to this point.