I’ve had this plant now for almost two years; it grows rampantly, has the leaves of a Dischidia and won’t flower no matter what I try. I am unsure if it is a legitimate Hoya species, or not, and really don’t know anything about it other than it has a Nathalie Simonsson accession Number (NS12-323). Here is a photo of it from this morning:

Even if it does not flower, it makes a great fast growing houseplant!