A Diamond's Quarters (Patreon)

Pink Diamond had to stifle a passionate moan as she heard the door to her quarters open, a lone Quartz soldier stepping in with purpose to each movement.

"My Diamond, I... uh..."  The quartz quickly trailed off, realization quickly that she'd stumbled upon something she was definitely not meant to see.

Pearl peered out from behind Pink Diamond's massive gut, a flustered look on her face as --  even in this compromising circumstance --  her hands refused to relinquish the beautifully soft and hefty flesh.  "W-we can explain!"

"No need, Pearl."  For once, the soft and warm voice of Pink Diamond was full of authority, making both other gems in the room go rigid.  One out of fear, and the other out of arousal for her Diamond's majesty and power.

"I would strongly urge you turn around and pretend you'd never seen this, unless you wish to explain why you barged into my quarters without so much as a request for entry."  Pink's voice softened again, but it retained that cold edge.

"Pearl, please continue."  She hummed, and gladly moaned out as though to taunt the quartz, as her glabby gut was eagerly kneaded and massaged by Pearl.

The quartz soldier stifled a blush, a hint of jealousy aimed at Pearl even as she turned and hurried out of the room.  "Y-yes, my Diamond!"

When the door to the room shut, Pink's full attention turned back to Pearl.  "Right, now, where were we~?"  Their bodies both began to glow, light intertwining as their form grew not only vertically, but ballooned out in all directions.  Billowing, expanding, threatening to fill the room.

...But then, that's what happens when you pump all your weight into a fusion to hide it.

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Pink and Pearl are caught in a rather compromising situation, forcing the gentle Diamond to make a rare display of her authority...