Lady Diosa loves a good trample session and encourages her slave to be underneath her, he's not keen on the idea and unfortunately can't take the weight of his voluptuous Goddess for long, So Lady Diosa does take pity and goes a little easier on him compared to other slaves of hers.... She plans to carry on training her slave and build up his strength and stamina.
This is realistic to how most people would react to being trampled not everyone can take it hard and for long periods