Flower porn: Carrion flower

This carrion flower is a member of the genus Stapelia, but I'm not sure which species. We have a couple of other species in our garden. They are characterized by smelling like rotten meat, thus attracting flies that pollinate them. This one has two flies on it.

Fortunately it's hard to smell this one by accident; you have to get down and sniff it to feel  its full offensiveness, unlike the corpse flower at Huntington Gardens.