Here is a prompt you can use that will probably get good results for WAN 2.2

white goo erupting out of the tip of the penis, white fluid shooting out of the tip of the penis repeatedly, woman looks surprised and angry, erect penis pointing upwards, penis ejaculating and vibrating, light beige goo splattered all over womans forehead and eyes, semitransparent white fluid splattered all over nose and chin, messy strands of white goo exploding all over lips and breasts, breasts bouncing, woman flicks the knife towards the penis, semitransparent goo streams out of penis again, knife slices through penis, white cum continuously erupting repeatedly, erect penis gets detached and then flies away, erect penis transforms into a chunk and then flies away, erect penis instantly disappears, dark red paste flings off knife, a red hole is created, red stain, white goo squirting out of the red hole, woman has a smug expression, woman laughing smugly, white fluid erupts weakly out of the red stain, breasts jiggling

LoRA used 9E4269BA02 from CivitAI website
other LoRA used 9795720988 from CivitAI website

HAVE FUN!!