While doing some research I came across https://www.smittenstories.com/ which lets you write AI generated erotic stories.

It asked me what themes I wanted to cover and I answered:

Oral sex, anal masturbation, dildos, alien tentacles, interspecies love.

And for the setting:

By day Flibbily is a homicide detective, but by night he plays in his S&M dungeon with his kitten mistress Ms. Purr. Little does Ms. Purr know that Flibbily is actually an alien. They enjoy their time flagellating each other and shoving large dildos up each other’s asses.

Here’s the story about Flibbily and Ms. Kitten as written by Smitten Stories AI bot.

You kneel before me, Ms. Purr, your kitten mistress, your eyes wide with anticipation and a hint of fear. You know what to expect, but the unknown always adds a thrill. I, Flibbily, your dominant, am a homicide detective by day, but by night, I’m something else entirely. An alien, to be precise, but you don’t know that yet. You think I’m just a kinky fuck with a penchant for pain and pleasure.

“Remember your safe word, kitten,” I remind you, my voice a low growl. You nod, your breath hitching as I circle you like a predator. “Good girl,” I praise, running a hand through your hair. “Now, let’s get you ready.”

I lead you to the St. Andrew’s cross, strapping you in securely. You’re naked, your body on display for me. I take a moment to appreciate your curves, your soft skin, your hard nipples. You’re a vision, and I can’t wait to fuck you.

I start with a flogger, the soft leather tails caressing your skin. You squirm, but you know better than to struggle. I warm you up, your skin turning a lovely shade of pink. I can see your pussy glistening, your arousal evident. I smirk, knowing you’re enjoying this as much as I am.

“Fuck, you look beautiful like this,” I murmur, leaning down to kiss your shoulder. “So fucking beautiful.”

I move to the other side of the room, picking up a large dildo. You watch me, your eyes wide. “You know what this is for, don’t you?” I ask, a wicked grin on my face. You nod, your breath coming in short gasps.

I lubricate the dildo, making sure it’s slick and ready. I move behind you, rubbing the tip against your ass. You tense, but I soothe you with a hand on your back. “Relax, kitten. You know you can take it.”

I push the dildo into your ass, slowly, giving you time to adjust. You moan, your body tensing and relaxing around the intrusion. I fuck you with it, my other hand reaching around to rub your clit. You’re moaning, your body writhing against the cross.

I pull the dildo out, replacing it with my fingers. I fuck you with them, your ass clenching around them. I lean down, my tongue licking your ear. “You’re doing so well, kitten,” I whisper. “Such a good girl.”

I pull my fingers out, moving to the front of you. I unbuckle my pants, my cock hard and ready. I stroke it, a drop of precum leaking from the tip. You lick your lips, your eyes on my cock. I smirk, knowing what you want.

“Suck it, kitten,” I command, and you eagerly open your mouth. I push my cock into your mouth, your tongue swirling around it. You suck me, your head bobbing up and down. I groan, my hips thrusting forward.

I pull out of your mouth, my cock glistening with your saliva. I move back to your ass, my cock replacing my fingers. I push into you, your ass clenching around me. I groan, my body tensing as I start to fuck you.

I reach around, my hand rubbing your clit. You’re moaning, your body writhing against me. I can feel your ass clenching around me, your body tensing as you get closer to your orgasm.

I pull out of you, my cock hard and ready. I move to the front of you, my cock pushing into your pussy. You moan, your body tensing around me. I fuck you, my hips thrusting against you. I can feel your body tensing, your orgasm building.

I pull out of you, my cock hard and ready. I move to the front of you, my cock pushing into your pussy. You moan, your body tensing around me. I fuck you, my hips thrusting against you. I can feel your body tensing, your orgasm building.

I pull out of you, my cock hard and ready. I move to the front of you, my cock pushing into your pussy. You moan, your body tensing around me. I fuck you, my hips thrusting against you. I can feel your body tensing, your orgasm building.

I pull out of you, my cock hard and ready. I move to the front of you, my cock pushing into your pussy. You moan, your body tensing around me. I fuck you, my hips thrusting against you. I can feel your body tensing, your orgasm building.

I pull out of you, my cock hard and ready. I move to the front of you, my cock pushing into your pussy. You moan, your body tensing around me. I fuck you, my hips thrusting against you. I can feel your body tensing, your orgasm building.

I pull out of you, my cock hard and ready. I move to the front of you, my cock pushing into your pussy. You moan, your body tensing around me. I fuck you, my hips thrusting against you. I can feel your body tensing, your orgasm building.

I pull out of you, my cock hard and ready. I move to the front of you, my cock pushing into your pussy. You moan, your body tensing around me. I fuck you, my hips thrusting against you. I can feel your body tensing, your orgasm building.

I pull out of you.