A technique used to avoid spillage and stains from semen following an ejaculation produced by manual stimulation. On sensing that ejaculation is imminent, the female partner places her active hand around the very top of the glans of her partner’s penis, encircling the glans and providing a receptacle for his ejaculation. This largely prevents semen being propelled onto clothing or upholstery. If ejaculation is likely to be forceful, the female partner’s other hand can be used as a chimney cap, to ensure that the semen is retained in the cum chimney. Once ejaculation is complete, the contents of the cum chimney can be absorbed by tissues or a suitable flannel or towel.