Resources used: (bare in mind that I do quite a lot of editing on pictures so you might not get quite the same results)

Photoshop
Stable Diffusion (Forge)
Model: furrytoonmix_xlIllustrious
Animations: Locally done with wan2.1 in SwarmUI/ComfyUI Backend.

Tails bent over:
 
Loras: lora:Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL:0.7>, <lora:Pony_DetailV2.0:0.7>,
Steps: 25, Sampler: Euler a, Schedule type: Automatic, CFG scale: 7, Seed: 1242618413, Size: 800x800, Model hash: b3897ed289, Model: furrytoonmix_xlIllustrious, Denoising strength: 0.3, Clip skip: 2, Mask blur: 4, Inpaint area: Only masked, Masked area padding: 32, Lora hashes: "Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL: 91bf1becfe97, Pony_DetailV2.0: efd36a2f208d", Version: f2.0.1v1.10.1-previous-664-gd557aef9

Positiv:
<lora:Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL:0.7>, <lora:Pony_DetailV2.0:0.7>, smooth anime style, masterpiece, best quality, amazing quality, male, solo, sonic the hedgehog \(series\), Tails the fox, workshop, wide hips, balls, tall, adult, white gloves, teasing expression, presenting hindquarters, round rump, looking over shoulder, blue eyes, full body view, side view, bent over, Two Tails,

Negative prompt: 
realism, 3D,busty, ugly face, mutated hands, low res, blurry face, black and white, text, human, watermark, chubby, pubic hair, eyelashes, tears, piercing, lips, shoes , socks, eyelashes, plate, plates, ((((Female)))), ((breasts)), eye lashes, on car, eyelashes, feminine, shirt, bra, finger nails, closed eyes, hand, blue fur,


Tails jerking it: 

Loras: lora:Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL:0.7>, <lora:Pony_DetailV2.0:0.7>,
Steps: 25, Sampler: Euler a, Schedule type: Automatic, CFG scale: 7, Seed: 3082724724, Size: 800x800, Model hash: b3897ed289, Model: furrytoonmix_xlIllustrious, Denoising strength: 0.3, Clip skip: 2, Mask blur: 4, Inpaint area: Only masked, Masked area padding: 32, Lora hashes: "Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL: 91bf1becfe97, Pony_DetailV2.0: efd36a2f208d", Version: f2.0.1v1.10.1-previous-663-g17a42e58

Positiv: 
<lora:Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL:0.7>, <lora:Pony_DetailV2.0:0.7>, smooth anime style, masterpiece, best quality, amazing quality, very aesthetic, male, solo, sonic the hedgehog \(series\), Tails the fox, sitting on bed, wide hips, spread legs, balls, penis, masturbating, tall, adult, facing viewer, white gloves, blue eyes, using right hand, pleasured expression,

Negative: 
realism, 3D,busty, ugly face, mutated hands, low res, blurry face, black and white, text, human, watermark, chubby, pubic hair, eyelashes, tears, piercing, lips, shoes , socks, eyelashes, plate, plates, ((((Female)))), ((breasts)), eye lashes, on car, eyelashes, feminine, shirt, bra, finger nails, closed eyes, hand, blue fur,


Shadow sucking it: 

Loras: lora:Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL:0.7>, <lora:Pony_DetailV2.0:0.7>,
Steps: 25, Sampler: Euler a, Schedule type: Automatic, CFG scale: 7, Seed: 4074176740, Size: 1536x1536, Model hash: b3897ed289, Model: furrytoonmix_xlIllustrious, Denoising strength: 0.3, Clip skip: 2, Mask blur: 4, Inpaint area: Only masked, Masked area padding: 32, Lora hashes: "Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL: 91bf1becfe97, Pony_DetailV2.0: efd36a2f208d", Version: f2.0.1v1.10.1-previous-664-gd557aef9

Positiv: 
<lora:Smooth Anime 2 Style SDXL_LoRA_Pony Diffusion V6 XL:0.7>, <lora:Pony_DetailV2.0:0.7>, smooth anime style, masterpiece, best quality, amazing quality, male, solo, sonic the hedgehog \(series\), Shadow the Hedgehog, blowjob, POV, sucking penis, looking at viewer, wooden floor, kneeling,

negative: 
realism, 3D,busty, ugly face, mutated hands, low res, blurry face, black and white, text, human, watermark, chubby, pubic hair, eyelashes, tears, piercing, lips, shoes , socks, eyelashes, plate, plates, ((((Female)))), ((breasts)), eye lashes, on car, eyelashes, feminine, shirt, bra, finger nails, closed eyes, hand, blue fur,