Marina awoke as the morning sun shone in through her window. She yawned and stretched her body, gently sitting up. The weekend... She loved the weekend, mainly because she could focus so much more on swimming and working with her dad. She got out of bed, and walked into her bathroom, shutting and locking the door behind her.
She took off her shirt and panties, examining herself in the mirror. Her lean and athletic body was something to marvel over, and she sometimes enjoyed looking at herself in the mirror. She turned around and got in the shower. As she turned on the hot water, she instantly felt a slight discomfort. "Woah... too hot...". She adjusted to a cooler temperature, but soon felt that it too was uncomfortable for her. Almost like her entire body had stinging nettles all over it. She gradually kept turning the temperature down, as several times she would stop at a cooler temperature only to find that same discomfort still present.
Without noticing, she now had the shower on the coldest setting, hosing her down with ice cold water. "Ah... perfect" she said, revelling in the relaxing feeling of the water cascading down her body. She massaged the water into her body, feeling herself. She looked down, as her hands soon were granted minds of their own. Marina bit her lip as on hand went up to her breasts, while her other slipped lower and lower...
As Marina's hand nestled between her legs, coaxing a soft moan out of her, she curled and spread her toes in excitement. As she started masturbating, a tingling sensation erupted not only in her nether regions, but also her feet. Too preoccupied in her pleasure, she didn't notice her feet changing further. The webbing between her toes started growing, and soon stretched all the way to the tips of her toes. As the tingling sensation stopped in her feet, it only grew in her wet cunt. She was whimpering at this point, suppressing a loud moan as she fingered herself. She soon reached her climax, a wave of overwhelming pleasure making her entire body shiver as her eyes rolled back into her skull.
After a good 30 seconds of catching her breath, Marina finished her shower and got out, drying off. As she got to her feet, she noticed the webbing in between her toes. "Woah... freaky..." she said to herself as she gingerly touched her webbed feet, exploring the individual webs. Her lips formed into a small smile as she seemed to almost be in a trance by looking at her feet. "Marina! Breakfast is ready!" She heard her father call to her. "Coming dad!" She replied, as she quickly snapped out of it and hurried to get changed. An old college t-shirt her dad owned and some tight booty shorts. She paused before exiting the room, before walking back to quickly grab and put on a pair of socks to cover her... new features.