I dont grow it so I dont know if it is separate sex plants. the male parts of any flower are the Stamens [anthers & filaments] The anther carries the pollen.
the female parts are the stigma [that collects the pollen] and a tube [style] that connects to the ovary. Hope this helps you work ot what it does have.

Ceropegias are truly fabulous plants!

I think you are asking whether they are Monoecious (have separate male and female flowers) and the answer is no, the flowers are bisexual, with both the male and female organs contained in each flower.