That's no moon, it's your husband! Amicus may be settling back in home on the planet Adastra, but you're fairly certain he may be having an effect on the planet's gravitational pull. Enjoy!
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"Ah— Urp! It's good to be home, isn't it?" Amicus let out a deep, belly-full laugh that sent the rest of his now monumentally flabby body wobbling and jiggling. The both of you hadn't been home ten minutes, and he already ordered the palace servants to grab a bucket-sized strawberry shake from the Earth Food Court— it had been a present, ostensibly for you, for when you returned to Adastra. But in the year since you had been together, he had taken a much bigger interest in it than you ever did.
After the long tour, you had quietly wondered if the honeymoon period would end— especially with Amicus' inexplicable, rampant gluttony. It had transformed your once burly and hunky wolf into a blob large enough that if he were sent back up into space, he might count as Adastra's second moon. The wolf's body beggared belief— he might be the single largest sentient in the galaxias at this point, having eaten himself into practical immobility after touring every colonized system. His gigantic, roiling gut spilled out in huge, indomitable waves, spilling over even the largest of couch-sized thrones he had been given, legs listlessly splayed to the side now that his thighs were thick as barrels and doughy, feeding into an enormous rump that had absolutely shattered the old, centuries old throne when he tried to squeeze into it.
The Emperor cut the farthest thing from the noble and dynamic figure he did before you left— his handsome face was bloated and round, ringed with extra chins and pinched in by his own bloated cheeks, while once-muscular arms wobbled with reams of extra fat. Entire carpet's worth of cloth were needed to envelope him now in anything passing royal garments. It truly was astounding— especially since Amicus seemed entirely unphased; he just had to keep eating. And yet, where this enormously, unspeakably obese beast should have shocked and horrified… you couldn't take your eyes off of him. The sheer heft and decadently rich, over-ripe curves of his enormous body, the sparkle in his eye as he bit into a burger larger than your head, his deep laugh that made his whole body tremble— you could only climb up his belly, half-sinking into the folds of pillowy blubber and surprise him with a kiss.
Amicus blinked, still clutching his latest morsels in either hand. "What was that for?"
You could only laugh yourself, sinking into his impossibly soft body like you were curling up for bed— caught in your enormous wolf's gravitational pull, you knew that Amicus was just perfect for you at any size.