Here's the translated JAV description:
#Adult Toy Monitoring Sex
Our company manufactures and sells adult toys. We regularly recruit monitor part-time workers to help with product development. Today's monitor is Mina, a 20-year-old college student with a great figure.
"This is our product, do you masturbate with it?" Asking about masturbation and sex openly is also an important part of the research.
"Use the sofa behind you, and call out when you're done." The staff member leaves the room. The monitor sits on the sofa with a vibrating egg toy.
She checks the vibration, inserts the pointed end into her pussy, and starts masturbating.
"Mmm..." In an instant, her nipples become hard, she pushes aside her panties, and uses the toy to tease her clit.
"Ah... This feels so good..." She doesn't stop even after climaxing, and ends up masturbating for three rounds.
"Wow, you seem to be enjoying yourself." The staff member enters the room, filming her with their phone.
"Eh, eh..."
"So, how do you like it?"
"It felt really good."
"Doesn't it feel too good to stop?" The staff member pushes her swollen pussy, teasing her.
"Do you want to touch it?" The staff member reveals his erect cock in front of the monitor's eyes.
"What do you want to do?"
"I want to suck it."
He teases her by hiding his cock, then stimulates her sensitive spots like her earlobes and nipples with his fingers.
"Mmm... Ah..." She pushes aside her panties, and he starts teasing her pussy with his fingers. Since she seems close to climax, he teases her clit and licks her pussy while she moans.
"Ah, ah, I'm going to cum!" After climaxing, he makes her masturbate with an electric vibrator and continues teasing her until she climaxes again.
"Let's try this too." He makes her get on all fours, sticks a thick electric vibrator into her ass, and turns it on.
"Ah, ah, I'm going to cum..." The horny monitor squirms and squirms, unable to resist the pleasure.
"I want your cock." When he presents his erect cock, she opens her mouth wide and sucks it greedily. Her face turns into a lustful one. Her deep blowjob and tongue play are incredibly satisfying. He makes her spread her ass on the sofa and stimulates her pussy with his erect cock.
"Please insert your cock into my pussy." He pushes his cock deep inside her, and she shakes her well-shaped ass rhythmically.
"Ah, it's big and feels so good..."
In cowgirl position, she takes his cock herself and thrusts her hips up while teasing her nipples.
"More... I can't stop my hips from moving." The horny girl shakes her hips wildly, climaxing repeatedly. During face-to-face sex, she kisses him deeply while thrusting into her wet pussy. When he pulls out his cock and teases her clit and pussy with his fingers, she spasms uncontrollably.
"Don't be mean, please insert your cock." During regular sex, he thrusts into her pussy that's already wet from climaxing, and ejaculates on her stomach.
"Come back for another part-time job."
"Yes..." This horny girl became a regular monitor, coming back for a part-time job once a month.