Frieza (DBZ).

While Krillin's first set of Destruco Disc attacks failed to kill Frieza in their weaker form, it proved successful when he was distracted in the fight with Vegeta.
While Vegeta angrily threatened to kill the earthling over stealing his thunder, Frieza's headless body gleefully enjoyed its limited, but newfound freedom from its master's control and released all the pent-up cum the alien refused to pump out over the years.