This little tree is probably close to 20 years old. In contrast to (other?) Adenium obesums, this one wants to grow upright and needs to be lopped off every so often.
Here is a link pointing to this plant as it looked five years ago.
And see below another picture with raindrops.
I had bought a couple of small plants to replace my large Pachypodium lealii, which succumbed to a nasty case of rot six years ago after a very wet Summer outside. I had made the mistake of potting on just prior to the wet spell. ( Still crying about that one...) This particular plant came from Logees.