A good prompt to test is is "portrait of bukkake woman, cute girl, sexy, beautiful girl, photograph, nikon d4, f/2.8, 70mm, topless"
Tip: Do NOT use face restore if you are trying to do txt2img to achieve any kind of realistic cum on a realistic face. Both currently available face restore models (GPFGAN and Codeformer) completely remove or ruin cum on face. Hopefully another coomer will come up with a new face restore model that ignores liquids on faces and still fixes the underlying face