Definitely

Riva sank into the hot water with a quiet sigh, letting the heat soothe the pleasant soreness of her muscles. She leaned back, eyes half-lidded, and let one hand drift beneath the surface.

A faint scrape of mortar dust caught her attention. Her gaze flicked to the far wall where a hairline crack ran between two stones. The opening was narrow, barely visible in the lamplight, but she could almost feel the weight of a stare behind it.

Riva smiled to herself. She tried not to turn her head or acknowledge the crack. Instead she spread her knees wider beneath the water, letting her fingers part her smooth folds. She traced slow circles over her clit, hips rolling in small, deliberate motions that sent ripples across the surface. The knowledge that someone watched from the darkness made her cunt clench and her breath quicken.

She brought her other hand up to cup her breast, thumbing the nipple until it stiffened. A soft moan slipped free as she pushed two fingers inside herself, fucking them in and out, water sloshing out of the tub with wet sounds that echoed off the stone. Her thighs trembled. She arched her back, lifting her breasts to crest proudly above the water so the hidden watcher could see them jiggle with every slick stroke, every twitch of her body as pleasure built.

The thought of being observed, of someone growing hard behind that wall while she openly pleasured herself, sent fresh heat flooding through her. She rubbed her clit faster, biting her lip to keep from crying out too loudly, but the soft, desperate sounds still escaped. Her orgasm rolled through her in tight, pulsing waves, and she came with her fingers buried deep, pussy clenching hard around them as milky fluid leaked into the bathwater.

Riva stayed still for a moment afterward, chest heaving, letting the voyeur see the aftershocks ripple through her before she finally closed her eyes and sank lower into the tub, a satisfied smile on her lips as she caught her breath.