"It's just... I always dreamed of having a human lover!," she exclaimed mere seconds before she launched herself towards you.
You were knocked back quite easily into the sand by her 'attack'. Her arms wrapped tightly around you, squishing her sizable breasts against your chest, while her pink plump lips pressed against your own thinner set and her long hair shrouded both of your faces from the rest of the world on this moonlit night. You were dumbfounded, to say the least, but not displeased at this sudden turn of events of having a fishy woman wriggling on top of you.
Wriggling...
...
You suddenly remembered that there were other mermaids frolicking in the water! There was no telling if they would be as friendly to humans as this one appeared to be. After you managed to sit up, trying to reciprocate the mermaid's affections as you did, your hands shifted lower down her form until they reached her wide hips, covered in emerald green fish scales. Carefully, you linked your fingers together underneath her single mound of a scaly bottom and lifted her up just enough that you could drag her with you further up the beach and behind a rock.
It was a bit of a slow journey, with her flopping fin and all, but she didn't seem to object to this impromptu trip. Eventually the two of you were obscured to the other mermaids by the large rock, at which you had set her down in the sand. She hesitantly broke the most recent kiss with you and sat back with her hands pressed against the ground to prop herself up.
"Are we embarrassed?," she asked with a giggle as her long caudal fin continued to flop about in an involuntary action, kicking up sand. Her right hand sliding up her side and resting on top of one of her bare breasts displayed her intentions quite clearly. She was as if drunk, her head dizzy over the prospect of realizing her dreams.
You sat back yourself and looked her over, drinking her all in. She was certainly a vision of loveliness with her gleaming hair, her glistening green scales, and shimmering wet skin. Besides that long caudal fin, she had one at either side of her shin, for lack of a better word, another two on top of her thigh, and a dorsal fin that began at the small of her back on the human side of the divide betwixt her halves. The dividing line itself at her waist, below her navel and above where you would have expected another part of her anatomy, was more of a blur, fading one into the other, so that she was more of a whole rather than a collection of parts from two separate creatures.
"Shall we go to your place or mine?," she enquired, snapping you out of your study of her.