The Yuki-onna (The Snow Woman) (F/F or F/M)
A Yuki-onna is a Japanese snow spirit capable of bringing blizzards and storms. The spirit is usually malignant to humans, but in some stories, the Yuki-onna is portrayed as hungering for warmth. Sometimes she will disguise herself as a human and marry/take a mortal lover. The Yuki-onna can hide her true nature flawlessly, but what Yuki-onna despise more than anything are lies.
The plot? Many years ago, a young boy/girl lost in the mountains encounters a horrific blizzard. He/she believes he is going to die, but an unearthly beautiful woman throws a strange gossamer cloak over him/her, whispers that he/she is beautiful, and promises to spare his/her life. However, the victim must never tell anyone what he/she has seen. Years later, the same boy/girl, now a handsome man/woman, returns to the scene of the trauma and finds a beautiful young woman, cold and stranded, on the mountainside. Her name is Yuki, and she shows a deep love and interest in her savior.
Yuki is actually the malicious spirit, and she is waiting for her lover to break his/her word about that fateful cold night. And when the victim does, Yuki will drag him/her away to her palace of snow forever.
Involves: Dom/Sub switch (Yuki will be very submissive and sweet as a human, but horrifyingly dominant as the Yuki-onna, bondage, anything you believe can reasonably fit into this roleplay.
*Note: I suppose this could be modified to be a M/M by changing the spirit to a Yuki-otoko, or a "Snow Man," although I feel silly thinking like that.
In Dreams: We Love and Die (F/F, F/M, M/M, also trans-gender/sexual friendly)
Two people are born with an innate psychic link. They have never met, but they always share dreams together. They discover over time that they are immensely attracted to one another, and they strive to find and meet each other in the real world. Things get complicated when one of them becomes more psychically inclined than the other, and he/she begins dominating the other person's dreams, forcing sexual situations and distorting the shared dream realm to allow impossible acts and scenarios. When the dreams start to become too much to bear, the partner tries to flee, and it becomes a race to see if the dom can find his/her sub in real life at last.
The characters would be able to take additional forms in the dream world, but they would likely keep it to things that suit their personalities.
If I play a male:
Angelic Dream form:
Form for water/swimming:
If I play a female: