Her bikini bottoms

"Where's your bottoms?" Ibuki asked, her eyes fixated on Mikan's bare pussy before her. The water dripping down her crotch and her pussy lips excited the musician to no end.

Mikan, on the other hand, was mortified; both her pussy and thick ass were out in the open for anyone to see. If she was worried about being seen before, she was even more worried about someone taking a picture of her butt cheeks.

Her focus started to drift everywhere in the river, desperate to find the white piece of fabric, no matter how small it was.

"Ca-can you see my bi-bikini?" Mikan finally spoke to Ibuki, something she sort of dreaded after freaking out at her touch.

"Huh?" The sound of her voice finally snapped Ibuki out of her fixation on the cute nurse's vagina.

"Ohhh..." Mikan groaned as she finally covered her crotch with her hands, though she was more than a little embarrassed about her giant ass being too big to cover.

"It's... ummm..." Ibuki started to look along the river for her crush's missing swimsuit.