The serum takes effect.

The transformation process takes three days, three days where you have been **** to wait and pace, unable to act. The formerly large man is gradually reduced to a cute little **** girl, slender and large breasted girl. You have had your lash mistress Khali prepare the girl. As you ordered she is hogtied with her head down and her perfectly rounded arse high. She is gagged and small grunts of anger come from deep within her throat. Her newly pierced nipples stand erect and her breath comes in angry gasps. Her pussy glistens smoothly, freshly shaved, as per your instructions. The

To extract any useful information she knows you must dominate Yohsl and awaken her innate **** urges. It takes time and skill to awaken the **** urge in a serum girl. You have the skill, but time is not on your side. The longer it takes to dominate this girl, the more time Yohsl’s organisation has to change his operations and the less useful this serum girl's knowledge becomes. As Yohsl comes to consciousness she struggles against her bonds. "Not so big and tough now, are you?" you ask. Her eyes flash in response. She is hardly ready to call you master, her former male personality remaining strong.

She seems upset that she is gagged.

You remove the gag and she spits at you. "You will not make me talk," she says.

You shake your head. "I think you will tell me what I need," you say.

You reach across to the rack and lift the whip. As you stretch the leather between your hands you briefly entertain the notion of whipping some respect into the girl to dampen those rebellious fires. You have taken great relish in such actions before; however this does not appear to be the best way to make Yohsl talk.

Clearly she is not yet responding to your advances as a serum girl should. You go to your teak desk. "What are they?" Yohsl asks as you produce a number of vials from the drawer and place them before her. You have quite a range of philters and potions to draw upon.

"Passion nectar," you say placing your finger on the first, a wicked smile on your lips, "vaid ... sone ... khoom ... dhori ... as you know it is a lust potion. I understand you have used it on new **** girls in your own pleasure house. You will soon know intimately that when it is consumed it puts the female subject into an intense sexual heat."

Yohsl's eyes widen in understanding. "No!" her bottom lip quivers slightly. The nectar will make her want to submit, but hogtied as she is she will be unable to act upon her desires, making them all the more stronger.

You place your finger upon two more. "These are herbs of fullness ... pa- nerl," your say, rolling the R with relish. You lift the reddish tinted potion. "This particular concoction is my favorite and will cause your already large breasts to grow even larger." You then touch the bluish one, "This one will fill out your hips and buttocks. They are slow acting, but we do have time," you lie.

She looks down at her body. Her breasts and hips are already quite well rounded, but to her they must seem immense.

You caress another bottle. "Chadwor's Serum," you state, "expensive, but I think you are worth it. You know what this does," you ask. Of course she does, but you explain anyway, "Chadwor was a brilliant physician who disdained the whipping of resistant **** girls, especially stubborn new serum girls. This humanitarian fellow found an ingenious way to make a **** submit to her master's will, devising this serum which permanently alters a female's genetics to make her overly ticklish, especially in erogenous zones. I do so dislike using the whip but I do find a feather to be very amusing. So may you."

You pause to let this threat sink in. Chadwor's serum was rare, but few who had seen it in action could doubt its effectiveness. The cost of the serum makes you **** to use it except as a last resort, but as a threat it is quite potent.

"Female contraceptive medicine - **** bitters. The carrot if you will. I hear it tastes terrible, but it is better then becoming pregnant. With all the sex you will be having I think ingesting **** bitters would be wise." You leave the idea of pregnancy floating in the room. Her eyes burn with anger and fear but she says nothing. "And the stick - the fertility **** known as **** honey. As you know it counteracts the effects of **** bitters and elevates the user's fertility for two to three weeks." She pulls against her chains and appears ready to launch herself at you.

"And the last little bottle in my bag of tricks is Leth, the **** of forgetfulness. Highly illegal. It temporarily blocks any knowledge or memory of your past life as Yohsl from your mind, leaving your skills intact but you mind a blank slate. Even though the effects of the potion are not permanent, by the time your memories return your new serum girl persona will have firmly dominated your mind. A painless transition into your future life as a serum girl," you throw the vial up in the air and catch it, "but where is the fun in that?" you ask.

You smile as you run your finger over the bottles. "I think we will start with the passion nectar."

Ignoring her feeble protests you approach and hold Yohsl's chin, pressing the vial to her pretty lips. She struggles with all the power of her small feminine frame as you pour the contents into her mouth. You hold her jaw closed, gently massaging her throat. You see her swallow reflexively and then stand back to wait.

The passion nectar is fast acting. Soon her breathing deepens and you see the fires of desire lighting her eyes.

"I'll be back sooner," you state, "or later." You turn and leave. After all you need her to want you beyond reason, rushing things will achieve nothing.