The mermaid slowly swam closer to Cassandra a concerned expression on her face. "You shouldn't be here" she said before diving back into the water and vanishing from site.
Feeling a little disappointed by her first encounter with a real mermaid. Cassandra stood back up and continued to explore the cave ignoring the mermaid's warning. Cassandra turned on the flashlight she had brought with her as the tunnel grew darker.
Cassandra entered a large cavern, wen she slipped and dropped the flashlight. Before falling on the hard cavern floor Cassandra was able to prop herself up on the wall. But as soon as she touched the wall her hand was greeted by an unpleasant slimy sensation.
"EWE GROSS" Cassandra screamed falling on her butt. She picked up her flashlight (which fortunately hadn't broke) and pointed it at the wall. She found that the entire cavern was covered in a thick layer of slime.
Throughout the cavern were large strands of silvery white slime which stretched from the ceiling to the floor. Cassandra noticed that it felt warm and a little humid inside this cavern. As she continued to explore, she came across what appeared to be a nest. Inside the nest were black eggs which appeared to have been destroyed.
On closer inspection however she saw that one had survived. Sensing her presence the egg began to stir. Cassandra watched her curiosity peaked as the egg began to hatch. From inside the egg emerged a gray skinned serpentine creature. It had a snake like head with no visible mouth, three sharp spikes along its back, and gills on the sides of its neck.
The creature immediately slithered towards Cassandra, startled by its rapid speed she quickly ran. Unfortunately the creature was to fast as it wrapped its self around Cassandra's leg. It then slipped inside her pants as it began to climb up her leg. Cassandra put her hand in front of it hoping to stop its advance but it kept slipping through. Then it slid inside her panties slithering ever closer to her vagina.
Cassandra became frantic desperately trying to stop it from getting any closer. Wen finally it began to slide its body deep inside her moistening slit. Cassandra's body convulsed wildly as the creature slithered deeper inside her now dripping sex.
The creature starts to secrete an aphrodisiac calming her down, but making her immensely horny. Cassandra stripped naked as she massaged her soft breasts. Cassandra writhed in ecstasy on the slime covered floor, stroking her moist pussy.
Finally reaching its destination the creature entered Cassandra's womb. The creature began to pump her body full of aphrodisiac causing her to experience multiple orgasms. Each one stronger then the last wen finally. Cassandra experiences the most intense orgasm of her life as cum squirts from her moist sex.
Exhausted from the multiple orgasms Cassandra passed out, as the creature incubates inside her womb. After a few hours Cassandra finally wakes up. She shook her head trying to remember what gust happened but only getting a few fragments. "What gust happed" she said before looking down at herself "AND WHY AM I NAKED".
Cassandra calmed herself down before standing up to look for her things. Fortunately her flashlight was still on and was easily able to find her clothes which were covered in slime. Walking back through the tunnel Cassandra found that her pussy in particular was dripping with slime.
"What was I doing in there, grinding my pussy on the floor" she thought. Cassandra eventually found the pool were she saw the mermaid before. She then decided to clean herself of getting into the crystal clear waters. Soon enough she was clean and feeling a lot better wen she started to clean her clothes to. "Whatever happened it definitely felt very erotic" she said still trying to piece together what happened back there.
"I wonder where that mermaid went" she thought remembering her strange encounter. "I bet sex with her would feel really good" she said before immediately shaking the thought from her mind. "What the hell I'm not lesbian" she said as she finished washing the slime from her clothes.
Cassandra got out of the pool and started to put her clothes back on. First putting on her pink panties then a pair of tan cargo pants. She then slipped on a black sports bra (she wasn't wearing a shirt) and slipped on a pair of sandals. She didn't really mind that her clothes were soaking wet she was pretty much used to it from living on the ocean.
Wen she finally left the cave it was dark the moon shining bright in the sky. Feeling hungry she went to her wreaked vessel to see if she had anything to eat. While Cassandra knows she could find food on the island she didn't want to risk another strange encounter. Fortunately for her she was able to find some granola bars and some oranges.
Cassandra then sat on the beach enjoying her meal wen in the distance she saw a bright light. "A boat, I'm saved" she said excitedly as she began to jump up and down with her flashlight trying to get their attention. She felt profound relief as the light grew closer, finally she was getting off this strange island. She continued to flag them to her blissfully unaware of the creature inside her and what it might be doing to her.