It felt like I was waiting forever for his shaft to meet my gaping wet hole. I was face down with my ass in the air squirting clear lubricant.
"PLEAAASE fuck me!"
Runt had a sly grin on his face as he stroked his 12inch long, 4 inch thick cock.
"Hmmm, what would you do to get me to fuck ya?"
"Anything and everything" I pouted. "Please, just please put it in me!"
I could feel his tip applying some pressure to my entrance. I licked my lips.
"Yes please...." I whispered with lust.
"I guess you'll be okay with me staying here indefinitely?" he said as he slowly applied more pressure."
My eyes started to roll back and drool started to roll down my mouth as my ass started to squirt more lube.
"UHHHH AAAAA......ummm....ummmm.....wha.....wha.....oooooooOOOOOOOHHHH." I could barely comprehend anything. The only thing I was fully aware of was the godly (or demonic) pleasure in my ass.
"I'll take that as a yes" He smirked
"If your going to be my slut mate for the rest of eternity I'm gonna have to remodel you a bit more to my tastes" He said as he started inserting the rest of his phallus into me.
"Don't worry I will honor our agreement. I know how much your penis is to you and how much having a big penis means to you." Runt chuckled as he began to thrust all the way in and out in a gentle rhythm.
"Ah...ah..mmmm..mmmmm......mmmmm.." Was all I could respond with as my eyes were completely rolled backwards.
Other than the fantastic ass fuck I was feeling I also felt a small tingle over almost my entire body.... It felt like my whole body was compressing inward. Everything but my penis. I felt my waist compress a little more and my bubble butt felt like it was getting more bubbly. My chest started to swell a little bit until I had very modest but noticeable, round, pert breast with huge dark nipples.
"Coming along nicely aren't you my lil fuck buddy?" "I'll make sure that penis looks real big on you" he laughed as he picked up the pace with his thrusting and started pounding my ass.
"..............................." I couldn't even grunt anymore. I was basically catatonic, subconsciously pressing my ass back against him in a drunken rhythm as I drool with a giant blissful smile on my face.
Every part of my body but my penis was shrinking as my ass was still squeezing his massive cock. At the same time my hair was growing a bit longer as two stubby little horns were starting to poke out of my head. A thin, spade tipped, muscular tail started to form from the base of my spine and started to wrap around Runt's cock.
"There we go...." he huffed. "That'a girl" He said as he started thrusting his huge cock even faster into my tiny body. My new tail jerking him off as he thrusts.
Finally Runt started cumming buckets full of cum into me as he kept on thrusting wildly. Oddly enough none of it escaped my ass. My body absorbed all of his demonic magic seaman. I snapped out of my trance when I felt the last of his 12inchs slip out of my ass. I stood up and instead of looking down 2 ft at him I was looking up about 6 inchs.
Runt slapped my ass and brought me to a mirror.
"Take a look at yerself!"
I was a foot shorter than him with womanly proportions and modest but round and supple breast. My hair was shoulder length with two little horns poking out. I had a whip like tail and most importantly, I still had my three inch erect penis between my legs but this time I had a new perspective.
"My penis looks so big!" I said in a high pitched girly voice, with wide eyes, and an amazed look on my face.
"You kept complaining about the size of your penis. I didn't want to give any size back but I also don't want go back on my word soooo....."
"Your penis looks huge on that body" he said with a grin.
"Oh it's wonderful thank you so much!" I turned to him and started passionately kissing him tongues entwining and all. He started gently pressing my head down as I started to lick my way down his body to his still wet penis. Before I began to lick and clean my masters penis I looked up in pure devotion and whimpered for approval.
"Go on" He said
"Ya earned it!"
Gleefully and rabidly I cleaned his penis and waited on my knees for whatever my master wishes of me next.......