Prepodesma orpenii

The flowers have just opened. It's 8 o'clock in the evening, how amazing is that? This plant is almost night-flowering. :) I've bought it recently and it had flower buds already but I didn't expect them to develop after storing the plant in the dark for days, fransporting, transplanting. The buds tend to drop if the plant is stressed. Yet here they are.
It's also known as Aloinopsis orpenii but the proper name seems to be Prepodesma orpenii.
Thanks for your comment