"It's totally worth it." you mutter again. "In fact...." Whipping out the book again, you write the female parts you just acquired are permanently yours. "You," you command another hot woman. "Give me you upper half except for your head and breasts."
Within a few minutes, you gained her feminine torso, arms, and hands. Now you were female from the neck down and in your mouth. "Perfect." you say in a mature female voice and write in the book again, 'All my parts can't be detached from me anymore; not even by the use of this book.'
With that, you are now stuck with this hot, amalgamate female body for the rest of your life. And so, you take this time to move your feminine hands into your bikini top and start rubbing and stimulating your huge breasts. You moan and turn to the flat chested woman. "Massage my breasts." you command her. She rapidly grabs for your large breasts that once belonged to her. "Oh yeah, that's it." you moan. The stimulation is amazing, so you move your hand into your bikini bottoms again and finger yourself. This whole lewd scene is heaven for you, and you cum again Once done basking in the afterglow, you realize what you've done. "Shit, shit. I gotta get my own body back!" you realize the absurd things you wrote in the book during your lusty state. But the book cannot help you; you are stuck as you are for the rest of your life.