Her trousers. Her shirt should hide her underwear nicely.

Erica decide to simply remove her pants; any other piece would require her to expose herself way too much before she's in any inconspicuous form again, and she certainly didn't want to keep running in and out of the restroom too many times, or someone might notice, besides, her shirt would be enough to conceal her panties, and this is still not the most embarrassing form she's ever been in.

Erica moved a bit deeper into the park where spying eyes were fewer and she didn't have to worry about attracting any more attention, she undid the button on her jeans and slowly pushed them down her hips, the sound of the fabric crumpling around her feet gave her goosebumps, not to mention the fact that she was standing in the middle of the park wearing nothing but a shirt that revealed how hard her nipples were (which were not calming down one bit), and her white cotton panties, if she even bends the wrong way, her panties would come into plain sight.

Even though Erica was slightly bothered by her shirt, the breeze on her legs felt fantastic, she ran a hand unconsciously along one of her thighs, shivering a little from the sensation. her hand accidentally brushed her crotch area, and while it didn't produce a very powerful sensation, it was still strong enough to alarm her.

As she caught herself, Erica stepped out of the jeans lying on the floor and picked them up,folding them and placing her camisole along with it, she lamented not bringing a bag with her to carry her clothes, she opted to place them on the ground next to her as she soaked in the rays and felt the amazing warmth from the sun.

Just as she was relaxing and forgetting her current attire, Erica heard a rustle coming from behind some foliage next to her.