I don't care for 'dumping on' a woman's face bukkake style but an unexpected ejaculation can be sexy. The most memorable scene in my mind was when Britney Of Cumtrainer was blowing her husband (as always, unfortunately); the first squirt went into her mouth, she tilted her head slightly not expecting the second squirt to be more powerful than the first and it went across her nose, lip and cheek - unexpected, fun and sexy.

Guys standing around, jacking off while distracted by their neighbor's dick and dumping their load on the woman's face (if they even make it that far): not sexy at all .