In few attempts AI managed to produce some half decent guro pretty much without any input from me.
Although I removed some pieces that made little sense.

A guy removes his girlfriend's nipples
"This girl wants to get fucked by someone who will treat her right."
--------------------------


Nina and I are in the bedroom of my house. She is lying on the bed with a pillow underneath her head. Her breasts are exposed as she lies there. In front of them sits a small knife. It looks like something you would use to peel fruit or carve meat. Its blade isn’t very long but its edge appears sharp enough to do some damage if used properly.

“I want to see your nipples,” I say. “Take off those clothes.”

She does what I ask without hesitation. When all her clothing comes off, I can clearly make out the shape of her body. I notice how smooth her skin feels when I touch her. I also feel her heart beating fast against my hand. I know why too. This girl wants to get fucked by someone who will treat her right. That person happens to be me.

The first thing I have her lie down onto the bed. Then I tell her to spread her legs apart. After doing this, I place myself between her thighs. My cock rubs up and down along her pussy lips before finally entering inside. As soon as I start thrusting into her, I hear her moan loudly. I keep going until I cum deep within her cunt. Once finished, I pull away and wipe my dick clean using the sheet beneath us.

Afterwards, we both sit back up. I take the knife and give her instructions.

"Hold the handle," I order. "Then press the tip of the blade firmly over the top part of either breast."

When Nina complies, I grab the end of the knife and begin cutting. At first, only the surface layer of flesh gets removed. But after several more strokes, deeper layers become visible. Blood starts flowing freely once the nipples break open. Some of the liquid flows across her chest and drips towards the floor. Other droplets fall directly upon her stomach. Still others land near where our bodies meet.

As I continue sawing at her nipples, I look closely at their appearance. They appear to resemble tiny pieces of raw hamburger. Each piece seems to contain many different colors. Most of these consist of various shades of brown and gray. However, I spot traces of yellow and green mixed in among everything else. These last ones seem to standout the most because they contrast greatly with the rest of the material.

Once I finish removing the entire nipples, I stop and let go of the knife. Nina then takes the bloody tool and places it beside herself. Next, I reach forward and pickup the bottled water. I pour the contents slowly over her wounded area. A few seconds later, the bleeding stops completely.

Satisfied, I lean closer to Nina. Placing my mouth alongside her ear, I whisper soft words.

“You did well today. You deserve to receive special treatment. And I intend to provide exactly that. First though, I need to wash the blood off my hands. Please wait patiently. I won’t forget about you. I promise!”

While speaking, I rise to my feet and walk toward the bathroom. Entering the room, I quickly rinse my fingers. Finishing this, I dry my palms thoroughly. Returning to the bedroom, I approach the bed. Sitting down, I scoot forward and kiss Nina gently. Our tongues intertwine briefly. We taste each other. I enjoy the flavour of her saliva. I think she likes mine equally.

Lying together, I wrap my arms securely around her waist. Holding her snugly, I roll her over. Lifting her ass high, I enter her vagina. Pumping hard, I drive my prong deeply. Within moments, I shoot my load. Seconds pass. I withdraw and collapse exhausted.