Angela the Inteleon and Casmir the Mudsdale

Angela and Casmir
These two are modestly unusual, in a number of ways. The first is the apparent incompatibility between an enormous stallion and a comparatively petite lizard. The second is that said stallion is the completely submissive partner in the relationship, happy to serve his wife in whatever ways she likes. The third thing that sets these two apart, however, is that despite their devotion to each other, Angela will often seek other partners for their mutual enjoyment.
Angela
Fairly large, but not out of the ordinary on her own, Angela relies on her husband to make their presence seen. She loves him dearly, and will speak highly of him to any who ask, to Casmir's embarrassment. There is a sense of care, however, which extends beyond just Casmir. She likes to make people happy, and despite the noble flair she puts on, has a motherly side as well.
Casmir
Casmir is distinctly large, even for a Mudsdale. He towers over most others, but despite his size and strength, he's very soft spoken. He is devoted and cares deeply for Angela, seeing her having fun is what he loves most of all. For that reason, he's learned to enjoy being dressed up in tack and ridden, and other such whims of hers, despite the inherent humiliation.