Loosen a few buttons

Shallan sprints into her cabin, standing still and looking around frantically. Reaching out threads of energy, you slowly unzip the back of her dress, revealing a white silk shift. Moving forwards, you unbutton her dress from the bottom upwards, your hands shaking slightly with anticipation. When you reach the final button, the dress springs outwards, leaving her moderately large but perky and perfectly round breasts only covered by a thin layer of silk. You could clearly see her nipples poking through the fabric. Looking down in shock, Shallan pulled her dress closed and looked around in panic, checking if anyone had seen. 'Storms,' she cursed under her breath as she frantically rebuttoned her dress, 'How did that happen? I must have not done the buttons properly.' She clearly believed the incident was pure fluke. Giggling internally, with more delicacy this time, you slip the golden buttons out of their place once again, savouring every button. Once again, the turquoise dress flopped outwards, freeing her veiled tits with a slight jiggle. Shallan, having retrieved her notebook, dropped it with a yelp. Holding back a laugh, you watch as she looked around in confusion. Speechless with confusion, she strips away her dress, leaving her calves bare, and her dressed only in the white silk shift. As Shallan bent down to lift her discarded dress from the floor, you slip behind her to catch a glimpse of her ass as the fabric tightens around it. Almost salivating, you remark that it only seems to get more perfect the more you look at it. Disappointingly, you remark that she seems to be wearing panties beneath her shift, which sort of entirely defeats the purpose of the undergarment. oh well, it just means one more layer to remove until she's fully naked