All characters are over the age of 18.
Sven had promised to take Lilith on a shopping trip to buy a new outfit for her, as he was taking her to her first opera that evening. She was incredibly excited at both the outfit and for going to this fancy cultural event.
When she got dressed that morning, she didn't wear any underwear and wore a short dress because she would be getting changed a lot and it would be quicker if she could get undressed easily. She also loved the freeing feeling of knowing she was naked under her dress and other people having no idea, unless she sat with her knees apart, or she bent over in a certain way and they caught a glimpse of her perfectly shaven pussy.
She wasn't shy and never minded people seeing her in any state of undress. She only maintained decorum so she didn't get into trouble. It made her happy to think she could bring people joy just by them seeing her body.
She always drank a lot of water at breakfast to rehydrate herself after sleeping and she drank extra today because she knew they would be really busy and might not have much time to stop for refreshments.
She had drunk so much that she already felt the urge to piss, but Sven said they had to hurry up and leave if they wanted to get everything ready before the opera later. She knew she could hold it for a while and she enjoyed the feeling of needing to piss as it turned her on so much.
They grabbed their stuff and got into his town car. It was about a 15 minute journey to the high end lingerie shop he was taking her to. The pressure in her bladder intensified on the ride over, as did her arousal and she could feel the wetness in her pussy start coating her inner thighs.
They were welcomed into the beautiful shop by 2 immaculately dressed shop assistants who assisted them in their browsing. They already had the dress she was going to wear, it had been a birthday present, but it had needed some alterations, so they were going to pick it up from the shop on their shopping trip today. It was a strapless black floor length satin gown that had a slit that went right up to her hip.
They picked out a black satin strapless bra and thong to match, as they would go best under the dress. However, a white lace bra and panties set caught Lillith's eye and she begged Sven to let her try them on too. He consented, as he loved how she looked so innocent yet sinful covered in virginal white lace that left nothing to the imagination.
The attendants showed them to the changing room, then left to give them privacy, as Sven was one of their best customers and had bought his right to be left alone to help Lilith choose her lingerie. She tried on the black satin ensemble first, peeling her short dress off over her head, exposing her pert butt, flat stomach and perky but full breasts.
She was properly bursting to piss now, but was determined to hold it a little longer. As she slipped the black satin thong on, her abdomen was swollen like she was a few months pregnant. Sven helped her fasten the bra behind her back and stepped back to view the outfit. He said it would be perfect for her dress this evening and she agreed.
She removed her bra and thong, but the thong was coated with her wetness, so Sven brought it to his lips and licked it off, savouring her scent and sweet flavour. She then put on the white lace bra and panties she had so coveted earlier, but the need to piss was overwhelming now. He could tell she was about to burst by the endearingly vulnerable yet mischievous look she had on her face. She knew he always preferred her to piss in front of him, because it was such an intimate act to let someone else watch. They felt it brought them even closer together. Plus, as she was an exhibitionist, she loved being watched.
Lilith stroked her distended belly and sat down on the bench in the changing cubicle. She parted her knees so Sven could see that her panties were practically see through with how wet she had made them. He could see the outline of her pussy slit and her panties became even more transparent as she started to piss. It started off slowly and gently and she uttered a little gasp of surprise and pleasure. It soon gathered force and her piss covered the bench between her athletic thighs and pooled, then gushed over the edge like a waterfall onto the richly carpeted floor. As her piss rained down she moaned with relief as her belly returned to its normal flat state and piss flowed between her thighs.
When the torrent had abated, she stood up and surveyed the pool of piss on the bench and the sodden circle on the carpet. She had been holding eye contact with Sven the whole time and he knew how much it turned her on to piss in places she wasn't supposed to. She turned around and bent over from the waist, putting her ass in the air, showing him her soaked panties which were so see through you could see her asshole.
He knelt down on a dry patch of carpet and held onto her hips. He kissed each ass cheek gently, then kissed the sodden centre of her white lace panties. He then hooked a finger in each side of them and slid them down her wet thighs. He hung them up on the hook and proceeded to lick drops of piss from her inner legs, working his way to her glistening pussy. He gently lapped and licked and made her shudder as he cleaned her. It was so tempting to make her cum now, but he wanted to delay her pleasure for what he had in mind later.
The next stop was a very exclusive shoe shop, to get the perfect pair to compliment her dress. Sven was a very highly valued customer here too and the staff ensured his every whim was catered to. Lilith was exceptionally aroused and emboldened from her changing room piss just moments ago, and she wasn't completely spent yet.