Sarah Brown and Darren Liu sat together in his bedroom naked, arms around each other, reviewing the results of their last three episodes uploaded to their OnlyFans and MYM accounts. The response from their subscribers was tremendous, and they experienced a large bump in subscribers and views on all their social media channels, plus plenty of analytics and comments that Sarah leveraged for her marketing class project. With all this research material now easily available online, she leveraged existing content creator analysis tools to understand their fans and provide meaningful reports for her project.

"Who knew we would get this famous online?" he asked, kissing her on the cheek gently.

"I know...but this is great. I can show in my assignment how these analytics tell us what our market segment is and what they want. Oh...my last ex is one of our subscribers," she said, shocked at the revelation as she scanned their list of MYM subscribers, which was enormous now.

Darren just smiled and kissed her again. It felt good knowing that stupid loser who used to bully him in high school was now getting off watching him make love to his former partner, though Sarah did say they never really got as close as she and Darren are.

"Look at this question: why do you two always use lubricant? How are we supposed to answer that?" asked Darren.

Sarah just laughed and typed: A gentleman always uses lubricant.

"Oh no. We got a private message to our MYM account. I hope it's not some pervert wanting to watch you do ten strange men," said Darren, voicing his insecurities openly.

Sarah kissed him reassuringly on the lips and opened the message, then read it with him. It was a major adult products brand, and they wanted to negotiate a deal with them to use their lubricant products on their MYM and OnlyFans channels, essentially advertising it, in return for a significant monthly advertising payment. Their eyes widened when they saw the number of zeros in the proposed monthly amount, and they both looked at each other and smiled; the added plus was that Sarah could request their sales figures to see the impact her advertising had and use that for her marketing class.

A few days after speaking with the advertising executives, a box of several different types of lubricant from their company arrived at Darren's house, which he quickly and stealthily hid in his room to avoid anguish with his family. After searching for an appropriate location, he hid the lubricant in a backpack he had placed in the corner of his closet, hoping his family would never look there, but also hoping he and Sarah would use it up quickly. However, he was unsure of how to work the lubricant into their episodes, as well as tie it in with their existing content on their social media channels.

He mentioned his concerns to his beautiful blonde Caucasian English girlfriend Sarah the following day, who reassured her Chinese beta male boyfriend that they would think of something together, and discussed the matter over lunch at their university.

"Do you want to try the things we did when we first started going out, but using the sponsor's lubricants instead?" asked Darren.

"That's a good idea," replied Sarah, as she finished her salad, "because at least we can give an objective comparison of which lubricant worked better."

The following day, Darren grabbed three lubricant bottles, put them into his backpack, and ran out to Sarah's pickup truck which was waiting outside his house. They kissed each other good morning and rushed off to university, where they went to classes and then had lunch. After studying and doing some research in the library, they left early afternoon to stop at the local park they knew would be empty, parked in a remote area to not be disturbed, and went through the familiar route of placing screens over all their windows so no one would be able to look inside and see what they were up to. While they placed their webcams in different corners of the truck cab to film different angles, they discussed their plan for the filming of this episode for their social media channels.

"I think if we try and stick with our traditional pussy job in the backseat routine, that will make it easy for us to compare with the lubricant we typically use," said Sarah, checking the different camera angles on her Macbook.

"What if we both get too excited?" asked Darren.

"I say we just roll with it. If the lubricant is that good, at least our subscribers will see it."

With that, the two young lovers climbed into the backseat, started the recording, and began kissing. It didn't take long for them to get into the mood, and Sarah made the first move by pulling off Darren's tank top, exposing his firm, hairless yellow-golden muscled chest to the cool air of her pickup truck. She then leaned forward, kissed around his chest, and licked his nipples, while unbuckling his belt and opening his jeans, freeing his dark golden erection for the cameras to see. With a few strong pulls, she had removed his jeans and shoes, and placed them carefully in a neat pile on the car floor, turning her back to him.

While her back was turned, she felt his hands sneak under her sweater, so she lifted her hands so he could pull it off, then nibbled on her neck from behind. His hands wrapped around her breasts, playfully squeezing them, so she reached behind and rubbed his phallus. He then removed her bra, fondled her breasts, rubbed her nipples with his fingertips, then slid his hands down the front of her body to her jeans, which he opened and began rubbing her now exposed panty; she found her entire body bucking back and forth, pressing her groin against his pleasing fingers, and she groaned in delight. Next, she felt her jeans being pulled off, leaving her wearing nothing but her simple white cotton panty and his hands began sliding up and down the outside and top of her legs. He then felt up the back of her legs, from her ankles to her buttocks, and pulled her panty off, leaving her completely exposed; she felt his tongue lick her labia lips and she moaned with lust, then turned to face Darren:

"Come on, let's start doing each other."

He turned and reached into his backpack in the front, took out a lubricant sample, and held it to the camera; it was labeled as 'warm sensations.' He squeezed some into his hands, passed the bottle to Sarah, and lathered her vulva and labia thoroughly with it, being sure to thoroughly rub her labia lips and clit with his lubricant-covered fingertips.

"Hmm...feels warm..." mentioned Sarah, as she spread lubricant over Darren's erection. rubbing it up and down his phallus as if she were jacking it.

"It does feel warm," he concurred with her.

He lay down on his back, and she straddled him, holding his erection down against his abdomen with her thumb. She lowered herself on top of it, lining the slit between her labia lips with the underside of his phallus, her weight spreading her labia lips around it; warm sensations oozed into her loins when their genitalia made contact. Once in position, she put his hands on her waist for stability and began gliding back and forth along his phallus, generating warmth in their groins, while he wiggled his hips, which rubbed his glans against the flesh of her inner labia, spreading the warmth. They continued grinding their genitalia against one another, without actual penetration, and their breathing quickened along with their gasps of enjoyment, but the warmth generated from the lubricant made Sarah uncomfortable, so she got off of him and sat to the side.

"A little too warm?" inquired Darren.

Sarah just nodded between breaths, took a Kleenex from the front, wiped the lubricant off of her labia, then from his penis, then said "I think we can call it an acquired taste. Let's try the next one."

Darren took the second bottle of lubricant, named Sperm Mover, as the label said it was designed to help couples conceive, squeezed some onto his hands, and gently rubbed it onto her labia lips, his fingertips pressed firmly against her intimate flesh, and successfully elicited moans of pleasure from her. In return, Sarah squeezed some onto her hand and thoroughly coated his shaft with it.

She then sat against the back seat of her truck, legs spread, and he knelt between them and held her legs apart, and she pressed his glans against his abdomen to prevent it from slipping inside her. He then pressed himself against her, the underside of his shaft nestled firmly within her slit, with his glans pressed against her clitoris, and rubbed his shaft up and down along the length of her labia lips; this lubricant made the experience very relaxing as she felt coolness between her legs and no discomfort. It did not take long for the two to begin rubbing quickly against each other, and their moaning and breathing quickly reached a fevered pace.

"This feels cool...very soothing," remarked Sarah between breaths.

Excited, he pulled back, positioned his glans onto her slit, and gently pushed up, upon which his well-lubricated glans easily slid between her labia lips, and because she was grinding her body against him lustfully, his penis easily buried itself deep within her love canal, and she moaned out loud triumphantly as his glans brushed against her cervix. He then pinned her legs against his shoulders and pumped away earnestly into her, and she moaned and groaned in pleasure as he grunted with each thrust. The two lovers wrapped their arms around each other, pale complexion around dark yellow flesh, and she locked her legs behind his head, which kept their genitalia connected. As he pumped deep into her at a fast and furious pace, their breathing and primal vocals reached a fevered pitch, and they closed their eyes and let nature and instinct guide them into this carnal rhythmic beat.

Suddenly Darren grunted and thrust deep into her, ejaculating a teaspoon's worth of hot, sticky semen into her, which caused an invisible string keeping her spine tense to snap so that her body vibrated violently, and she cried out her satisfaction at the same time. Again he pumped another, albeit smaller, load of semen into her, groaning with satisfaction at having completed this primal act, and her body shuddered once again as she sighed in response. Again nature thrust his penis into her, leaving a tiny trail of semen behind, and again she orgasmed, letting out a very quiet sigh of joy to conclude her part, but he continued to involuntarily jerk into her a few more times, though could not ejaculate anymore.

Exhausted, he rolled off of her and sat beside her, and the two kissed tenderly and lovingly as they regained their breath.

"We got to recommend this one for couples trying to conceive," concluded Sarah, and then asked, "So what's left?"

"There are still five more samples to go through. Here's one," said Darren, picking a bottle out of his backpack and then holding it close to his eyes to read the label: "It says it helps keep erections up."

Sarah looked at his flaccid penis, then smiled, leaned over, wrapped her mouth around his and stuck her tongue into his mouth for a moment, then said:

"Let's try this one now and see what happens."

Darren squeezed some of the lubricant onto his hands and began rubbing it onto his tired, soft penis, shaking it often to try and get it hard again with no luck.

"Let me try," said Sarah, as she kissed him on the lips, took the lubricant, and began rubbing it all over his phallus and glans, paying extra attention to his scrotum and the sensitive flesh between his bulbous mushroom head and shaft, and felt it slowly stiffen by her loving touch. She continued rubbing the underside of his shaft and scrotum with her fingers until she restored his hardness, then spread some of the lubricant on her labia, remarked how it had no impact on her, and laid down on the back seat facing up again.

Darren quickly climbed on top of her, placed her legs over his shoulders, aimed his erection, and slowly squeezed it into her slit, each thrust driving it a little deeper into her vagina until he was buried hilt deep inside of her. He then aggressively pumped away into her with a raw primal lust unrivaled by their previous encounters, desperately rubbing the underside of his penis, especially his scrotum, against her vagina. To keep up his energetic pace, he grabbed onto her firm young breasts and pumped with all his might, allowing primal instinct to guide his actions.

Sarah wrapped her legs tightly around his head and leveraged him for balance when pushing her groin into his to deepen the level of penetration, grunting loudly as his glans rubbed her sensitive vaginal flesh. The effort was exhausting, and they both were breathing very heavily while grunting like animals, but the lubricant prevented him from drying up her love tunnel, so they continued for a good amount of time, and their bodies and vocals aligned into a beautiful erotic rhythm, and their minds were trapped in a blissful haze.

Suddenly Darren rammed hard and deep into her, cried out triumphantly, but ejaculated but a tiny trickle of hot sticky semen within her. She responded with her primal cry of satisfaction, and her body shuddered once as the orgasm exploded from her loins. On his next abrupt thrust into her, he could not ejaculate any more semen, but she still vibrated and cried out in joyful bliss. Despite not having any more semen left, he still pumped into her a few more times, and she still responded with a complementing orgasm of her own.

Exhausted, thoroughly satisfied, and unable to fornicate anymore, Darren got off her and they sat beside each other in the back seat to catch their breaths, filmed themselves speaking about their experiences with the three lubricant samples while still naked, then stopped the recording. After they recovered, they quickly dressed, edited the video, and uploaded the content to their various social media channels, then drove off.