...She's getting horny

Mary is relaxing comfortably with her sunglasses on as she tries her best to get a tan. The sun feels so nice and warm on her properly-protected skin; and she fantasizes about the wonderful tan she thinks she's about to get; not noticing that her skin is actually starting to pale a bit. What she does notice, however, is a sudden tingling feeling all throughout her body. It's very light at first; but then becomes more apparent as time goes on. She starts growing a little uncomfortable and restless as she can feel a strange heat forming inside of her; her nipples going hard and erect as they poke up from under the bra.

"Mmmm... Hmm? Huh? W-Wha... What's happening?" Mary says confused as she begins to pant; her breath now coming out in light puffs of steam, "Haaah~ Ah~ W-Why do I... Why do I feel so... S-So HORNY all of a sudden?"

Absentmindedly she begins to explore her body with her hands; noticing that her skin feels a little colder than normal. Her left hand reaches up under her bikini top to start playing with her breast; causing it to snap and crumble off of her as it had frozen from getting the potion on it, while her right hand immediately ventured down to her sex; breaking off the frozen bikini bottom to let her get access to her pussy so she could begin fingering herself to try and alleviate this pleasure.

She had no idea what was going on. She was so cold; cold enough that her skin and hair had turned completely white and that frost had begun to form on her skin. But she also felt hot; like a burning inferno was raging inside of her. It was a conflict of feelings that just added together to make her feel hornier and hornier; burning and freezing at the same time.

"Ahhh~ Ahhh~ C-Can't... S-S-Stop... S-S-So c-c-c-cold, b-but... S-So... hot~"

She kept going and going as much as she could. The frost on her body was thickening and starting to crystallize into solid masses on parts of her body. Her fingers are getting stiffer and stiffer as it gets harder and harder for her to pleasure herself... But she has to... She must! She needs this so badly. She has to cum!

"S-S-So... C-C-Close... I.... Ah.... I....."