Messing around with stable diffusion, it generated me this. Not exactly what I was looking for (andromorph instead of male with slit), but I think it's an attractive enough render. Besides, more sharks, the marrier, am I right?
Trying to upscale this didn't yield a good enough result, so posting the original low-res file. Hope it's okay.

Model: Pony Diffusion V6 XL
Positive prompt: score_9, score_8_up, score_7_up, score_6_up, score_5_up, score_4_up, source_furry, male shark, slit, presenting, anus
Negative prompt: penis, balls
Sampler: Euler a
Seed: 4212032008