You are back to being Linus.

You open your eyes with a start. For a moment or two you are unsure of where you are or even who you are. Had you dreamed the whole episode? The soft warm body wrapped in your arms and the view of your stepsister's room you have quickly dispels this notion.

You can tell almost immediately that you must have slept for a couple of hours at least after Mira had fucked you. The pink pill has worn off and you are male once more. You can feel your erection crushed between your bodies, her warm flesh against your cock making you hard even in sleep. You are still naked and Mira's back is turned towards you as you lie on her bed with your arms wrapped around her body. You gingerly begin to disentangle yourself from your stepsister, hoping not to wake her. This is not to be however and as you slowly try to slide out the arm that is beneath her sleeping body Mira begins to stir.

Mira turns over to face you. The dreamy post coital smile on her lips swiftly fades as she sees you in your male form and she gives a long disappointed sigh before propping herself up on one elbow. Her gaze travels down your body until it rest upon your boner.

"Ugh, gross." Mira says distastefully pushing herself away from you as if your small stiff cock was some contagious parasite.

"Mira, please..." You say, hurt evident in your voice.

"Sorry little brother, but I have no interest in having one of those things in my bed. If you want to stay then you'll need to pop another pill." Mira tells you.

"I only had the one." You tell her forlornly. "And buying that took most of my month's allowance."

"Then come see me next month. Leah I can have fun with, Linus needs to get the fuck out of my bed and take his little cock with him." She tells you in no uncertain terms.

You do as you are told without arguement. Going straight to the bathroom you deal with your erection, desperately wanking as you relive the sex between Mira and Leah in your mind. You blow your wad after only a minute or two, but ejaculating leaves you feeling hollow and unfulfilled. The orgasms you acheived as Leah, seem even more glorious by comparison.

For a couple of days you try to put the incident behind you and return to being Linus and living your normal life. It does not take long to realise that everything has changed for you now. At school when you saw the girls you had crushes on you can no longer imagine them sucking your dick, or sliding your cock into them as they sigh with pleasure. Instead your daydreams always have the girls making love to you as Leah, their tongues and fingers pleasuring the pussy you so briefly possessed. Even more disturbingly the sight of the jocks with their big, hard bodies causes you dick to stiffen as your thoughts turn to being Leah in their arms and taking a flesh and blood cock for the first time.

You try to convince yourself that these feelings will pass and late in the evenings on your computer you watch heterosexual porn hoping that will turn your desires back to wishing to fuck girls as a male. Invariably though, you seem to only get aroused imagining yourself as the woman.

Seeing Mira around the house only excerbates your feelings. Though she is polite enough in your parent's presence, she is mocking and condescending when you two are alone. You are certain she knows your secret thoughts, that half smile that she always has when she talks to you and the subtle flaunting of her body. You want your tomboyish stepsister, the erection you get whenever you see her is evidence enough. You want the Mira from that night though, dominant and in control as she fucked you mercilessly.