Some research

A short info was written on the front page:

Futanari bulls are women who have both male and female anatomy, which makes them incredibly versatile sexual partners. They can offer a wide range of sexual experiences depending on what the couple is looking for. For those looking to spice up their sex life, a futanari bull can be a great way to do so. Share your experiences with other men and women here and meet potential bulls here. All female, of course (With the special extra).

The site had several sections. An info section with articles and blogs. Another with a forum to exchange experiences and then the "Bull-finder", some kind of partner search.

"Please... fuck me... please don't stop! Hhmmm." The loud moans and screams of your girlfriend still came from the bedroom. The squeaking sound of the bed reached you all the way into the kitchen. If they kept this up, the neighbors would hear it.

You click on the forum. A user had posted a video showing a woman lying on a bed while spreading her legs while another woman had made herself comfortable between them. Just like Monica, this woman had a cock and testicles. The video was filmed from behind, so you could only see the testicles and how they were hanging heavily, slapping against the other woman's ass with every thrust. "Gift for my wife for the tenth anniversary," the user wrote. In the comments, he was praised and how his wife can be happy to have such a great husband who lets her have fun.

You now click on the "Bull-finder". You enter your preferences and are then shown suitable profiles. Only the sex is preset: "Futa".

You look at the search options. Age, ethnic background, cock size, preferences...

"I'm coming ahh! ~ ❤️" you hear your girlfriend screaming from the bedroom.

After that...

Silence.

It took a moment for the door to open. Monica came out. And only Monica. She joined you in the kitchen and went to your fridge without paying much attention to you. She took out a carton of milk, opened it, and started drinking.

She was quite sweaty. Her dark skin shone in the light. For the first time, you could look at her completely. Between her muscular legs hung her nine-inch cock, dripping with cunt juice. She doesn't seem to have cum and her cock was still throbbing. Her balls were bigger than yours too. They must be bursting with fertile seed.

Monica gulped down the milk greedily. She lifted the carton over her head, some running past her mouth and down her bare breasts and then down her torso.

She actually managed to drink it all in one.

She put the empty carton on the table and looked at the milk on her body.

"Amy will lick it off me," she said, shrugging her shoulders.

"And what are you looking at?" Monica walked around the kitchen table. You were about to close the laptop, but she just beat you to it.

"Ah Futa-World. Hang on."

Monica leaned over you and started typing on the keypad. Her breasts pressed against your head as she did so.

"Black Anaconda" She tapped into the search bar and a profile appeared.

"Here, this is mine. Make sure you leave a good review," she said, laughing.

She was just heading back to the bedroom when she suddenly turned back to you.

"Ah, one more thing John: would you mind if I cum inside Amy?"