She catches Monica cheating

Since Marie reports all of Monica's affairs to me, we know where she's spending the night at. Having told Marie previously, Jenny 'casually' visits her on one of those nights, and my cousin comes to my place the next day to tell me everything.

"Aah! It was so good!" She starts as we get comfy on the sofa. "Marie told me they were gonna do it at Monica's own apartment, so I went there with a little box of chocolates, you know, a fun little friendly visit! Marie 'forgot' to lock the door, so when she texted me they were in the middle of the act, I snuck in.

"Wow, the noises! Monica is so, so noisy when she's fucking! She begs a lot, and she moans and cries, it's so good! I went towards the bedroom and got my phone ready to take a photo, and when I opened the door... There they were! Marie was lying on the bed, and Monica was riding her facing the door while she was jerking two other futas off. She was so enthralled by the cocks, sucking one and stroking the other, I had enough time to record a video."

She shows me her recording. Indeed, my girlfriend was enjoying Marie's huge cock while masturbating other two lovers. She seemed to have several cumshots on her face and boobs already. I had taken my cock out already, and Jenny was slowly stroking me.

"Monica! I can't believe it!" Jeny says in the video after a minute of recording. My girlfriend quickly looks at the phone and interrupts her movement.

"J-Jenny?? What are you doing here??" Monica is so frightened. "This is... This is not what..."

"What is it, then? I come visit my cousin's lovely girlfriend and what do I find? You cheating on her with three other girls! Woah, well-endowed girls, I see, mhm!"

"I... I can explain it..." Monica cries as she climbs down from Marie. She can't hold a moan as she takes out her lover's dick. The other girls just stay away for the moment, looking confused, although Marie had already told them about Jenny's plan.

"Sure, go ahead. Explain."

"I... Well... It just happened..."

"Oh, this is the only time you've cheated on her?"

"I... It's... I mean..."

"How many times have these beautiful ladies fucked you?" Jenny was letting herself go a little.

"I... I don't know... Many..." She's flushing and trembling.

"Woah... Who would've guessed? But... I see a way out, hun." My cousin continues. "Maybe... If you let me participate, I'll just delete this video and won't say a word."

"I... I don't know. Do you promise you won't show her this?"

"I swear I will delete the video as soon as we finish."

Monica nods and gestures Jenny to get closer. Then the video ends.

"Of course, I was uploading the video and had it stored online too, so I did delete the one on my phone." Jenny tells me as she winks. Then she continues the story. "I got undressed and got on the bed with your girlfriend. Her pussy already had some semen from her lovers, so it was very slimy. I went in quickly and started fucking your girl fast and deep. Ooh, she felt so good! So tight! She wrapped her legs around me and pulled me towards her! The other three futas just started fapping.

"I asked her why she did it, and if you weren't satisfying her anymore" When she says that, my cock twitches. "And she accepted it! She said you don't shoot as much cum as much as she craves, and you don't fuck as hard as she needs! And she said she needs either a wonderful cock like Marie's, or several other futas to cum as many times as she desires.

"I said 'Oh, yeah? Prove it!' and I rolled over, moving her on top of me so she could ride me. I hugged her and asked Marie to do her ass, and she happily did. We double-fucked your girlfriend, Julie! And she took the other two girls' cocks and jerked them off so fast! And she came so hard! Then I came deep inside her! And after that Marie kept on fucking her for a looong time before she came too! Then the other two futas took our places and doubled penetrated Monica! It was beautiful!"

Jenny leans in and sucks my dick as she strokes it. My cousin, the one who's incestuously giving me a blowjob, fucked my girlfriend while she was with three other futas. That image was indeed beautiful.

"Oh, and of course, they fucked me too. I had lots of fun!" Jenny continues, taking my dick out of her mouth. "And Marie... Wow! I can se how Monica's fallen in love with her cock. She's huge! And so strong! I felt amazing as she pounded me! I see why your girlfriend can't find the same on any other cock. Not even yours. She is addicted to Marie's!"

"FUCK!!"

Jenny quickly puts her mouth around my cock as soon as I start shooting long ropes of thick semen, and she sucks until I've released the last drop. She keeps my cock in and sucks a little more even after I'm done.

"Woah, she's right! Compared to yours, Marie's ejaculations are enormous!"

I giggle.

"So what's next, Julie?"

"I think I'd like to end all this with a bang."

"A... Gangbang?"

"Hell yeah."