She had her wet hair combed back as she peered over her shoulder while watering the garden for the shot.
Klum and Kaulitz were dating for nearly a year last February.
Last week she shared this snap of herself posing behind a sheer curtain.
As a result, we have in our possession lots of long-range camera shots showing her lounging around topless on the beach or a boat.
While the post clocked nearly 200,000 likes, Klum had turned off the comments.
The Instagram Story post was followed by this snap of the model wearing a lace bra.