The first Jane (3legs) curls up to you on your arm, her sholder cock poking your cheek softly. "My turn babe." Her breast face cooed below your view, ""Transform or dare?"
You took a deep breath, "alright hun, I choose transform." You close your eyes and drew in breath once more befor adding "go easy on me, ok?"
"Ohh-hoo. Not a chance lover boy!" She cheers. "I'm going to have fun with you, but I promise, ill change anything you don't like on my next turn."
You tried to brace yourself but Jane left you no time.
"First your transformations will occur as I announce them."
To that affect your entire body began to crackle to life. As though a static charge was built up over your whole being.
"You will grow two feet taller and proportionally..."
You felt yourself lift up ward while seated on your bed, your knees bending higher from where you sat. To take it in Jane pushed you up off the bed to se your once 5'8" figure now streaching up to 7'8"
"...you will gain 150lbs of muscle mass..."
You felt your heart race as supercharged blood pumped into your vains. Thick chiseled muscle inflated across your moderatly built body elevating you to ameture body builder levels. Thick defined pecs brodened your sholders. football sized biceps swelled on your arms. tence power filled your cavs and hard thighs overcame you legs. you even felt you ass tighten up. As an effect of your dare you felt invigorated as you were turned on by your self-dream body, your member going ridged once more!
"...you will grow a sheath for you dick..."
Skin began to bunch up around the base of your hard (now) 8inch cock and became covered in velvity soft fur the color of your hair.
"... And you will have 2 two foot long canine cocks from the same sheath..."
Looking down from this unexpected development you watched your modist size cock extended further, the feeling of a sudden erection. It's bell shape being pulled into the tapered point at its tip. It then split down the middle painlessly and both bases swelled into a thick pulsing knot the size of a baseball
"... Your anus will grow into a visible doughnut..."
This one you couldn't quite see, as with your new bulk an size some dexterity was lost. But you could feel your ass cheeks spread as you could sense your pucker swell in all directions and a cold breeze caress your newly sensitive flesh.
"...lets add some hair. Lots of body hair..."
Your skin itched all over as thick fur filled your crotch, almost buryingypur sheath from view. Under your arms and up your ass crack thick matted forests of hair sprouted. Your arms and legs also filled thickly with hair. Your smooth chest quickly became burly and masculine. A beard swept down your chin and your short cut hair reached down to your shoulders.
"...your eyes will now be positioned at the base of your spine..."
Your vision blures to black and returns just as quickly as you can now see your tone, shapely And now hairy ass crack. Thick brown pucker of your anus also visible.
"... Your mouth will take up your whole face..."
Back on your head (a very disorienting feeling) you sensed your lips swelling grossly over sized, consuming you nose and taking up the space of your face.
"... And just to see what it looks like, a big 40lb stomach." Your girlfriend finished
You felt your belly gurgling behind your eyes and gripped in ayour hairy hands. The tone V-shaped abs ballooned out into a spherical beer belly, thicker hair forming from your sheath to your belly button. The low set weight also made your knees bend into a quarter squat. Through one of the mirrors in the room you could see your wide pics rating over what looked like a mid pregnancy belly your duel dog cocks throbbing awkwardly under its curve..
Struggling to find your bearings with your new field of view you look to your first girlfriend. Her horse cocks dripping with cum and pulsing painfully with need as she looked back at you. Infact you do a full 360 and find the 2nd Jane stroking both her 13inchers and the 3rd humantaur Jane thinking intently. Likely rather to take you for her massive member or have you knot her duel pussies with you're now matching plugs.
"Least I kept you male babe. Now what to do with you first." Said the 3rd Jane, after realizing you were staring at her.