Sex doll potion

I encountered a female wiccan who required a sample of blood to create a magic potion that would restore her youth.

Promising what ever I wanted.
I told the fifty year old woman about two sisters that
 I wanted to fuck and she made an offer.
A tonic that when opened would transform any female in the room into a biological pleasure object or a sex object.

I agreed to her terms and allowed her to draw the blood.
Later on during a study session at Amy's house 
both Amy and Jennifer were on Amy's bed reading.
I opened the bottle and tossed it on the bed.
After some protest the room went silent.

As I enter the room I realized both Amy and Jennifer had become sex/love dolls.
So I carried each of them to my car and as I was checking her nightstand for lubricants.
I grabbed the bottle that contained the potion.

Once I was in the privacy of my home with the dolls all alone. I began to fuck each one.
I took turns fucking each one 
and realized that I was being watched.

Both women were dolls in appearance but they were still fully aware and alive inside.
So I could have sex with an actual vagina.
As I retrieve the lube to stick it in one of their assholes.
I saw a hand written note that said  
" Tonic last for one month."
" One ejaculation in mouth equals an additional 24 hours."

Positioning one doll so it is forced to watch me fuck the other was my favorite pastime.
I would use Amy's Vagina to bring me to orgasm 
only to ejaculate in Amy's mouth.
Other times I would fuck Amy only to ejaculate in Jennifer's
mouth.
Or I would reverse the fun by fucking Jennifer and 
ejaculating in Amy's mouth.

I was in the process of adding five days to Jennifer's time limit and forcing Jennifer to watch.
When another note appeared.
The note said " Current transformation lasted 41 days."
" 91% chance of permanency upon swallowing semen."
" 50% chance of permanency upon internal ejaculation."
So I looked Amy directly in the eyes as I ejaculate
 and said  "Take my semen Amy!"
I then look at Jennifer and said " Your next. "