"No... no, I want this. You two have done so much for me already. You helped me as I've struggled with my
sexuality and have shown me so many new pleasures. After all that, it would be my honor to join you two." Mark
said as he went closer to Tom as he was finishing the last stages of his transformation; his spine detaching
to become a tail and his eyes changing to those of his dog form.
Mark sat down on the bed that Tom, or rather Titus, was lay on. Looking at the throbbing canine member in
front of him, he contemplated whether or not he was doing the right thing, giving himself one last chance to
reconsider but decided he wanted it. Grabbing hold of the panting dog's cock, Mark put it into his mouth and
instantly knew he needed it. Starting off slow, Mark worked up a steady motion, taking only a couple of inches
in at a time.
Titus whimpered as he felt his member starting to become engorged; his knot swelling fast. Noticing his, Jeff
walked over to his husband, giving him a scratch behind the ear.
"I know boy..." he said as he started rubbing his own crotch, smirking as he grabbed Mark's head and pushed
him down on to the base of Titus' raging cock, the knot filling up quickly in his mouth "Sorry Mark but Titus
really wants you to get right in there."
Gagging on the member, Mark started to quickly breathe through his nose like the guys had shown him before
during one of their kinkier sessions. He then started to go much quicker on the dog as he heard the panting
increasing, shorter gaps between each one. "Looks like he's close Mark, better get ready for this because it's
going to be-" Jeff managed to get out before his canine husband howled, shooting a powerful load straight to
the back of Mark's throat. "...Strong" Jeff finished as rubbed Titus' belly as the dog lay panting in the
afterglow.
Mark quickly had to swallow the load so he didn't choke on it. Pushing the dog's member out of his jaw as it
started to revert back to Tom, Mark started to feel funny. Getting to the top of the bed, he started to feel a
slight pain in his ribs.
"Okay Mark, the one thing we didn't tell you about this is the first transformation isn't like the others. In
a few seconds it's going to start to hurt as your bone structure starts to change. Don't worry though, it'll
only last for a minute" Jeff said as put his hands on Mark's chest, trying to reassure him that everything
would be okay. Then the first changes started.
His rib cage was the first place that it happened as they moved around, becoming more canine. Then his arms
and legs started to shift to a more quadrupedal stance. Mark struggled around as the pain became intense with
his mouth and nose expanding out, turning into a muzzle. Mark tried to speak, to tell his friends how much it
hurt but instead, he made whining noises as his vocal chords readjusted to match his new form. Next he felt
pushing at the end of his spine as his naked tail formed out of it. His ears then started to stretch out and
move up his head, causing him to flinch as the pain struck him. Tom and Jeff held him, stroking him and
comforting him as the pain of the first transformation took hold.
The pain started to dull down as the changes to bones finished with his fingers and toes shrinking to become
paws, matching his new set of legs. Mark start panting as he felt the worst of it over. Unbeknownst to him
though, a fleshy sheath started to form over his cock shortly before the hair around his crotch started to
thicken out, spreading along his body quickly and becoming more fur-like.
"Oh, looks like somebody's going into the final stages. Wouldn't you say so, Jeff?" Tom asked as he gave a
wink to lover, giving a quick glance to the growing member of their friend.
"Yes, I'd say MAX is about ready for some action. How about it, boy? Want Jazz and Titus to show you how dogs
do it?" Jeff replied before asking their quickly changing dog buddy if he wanted to have his first canine
experience. Max barked as the fur crept up his body, a red tip sticking out of his sheath.
Jeff and Tom immediately both started messing with Max, rubbing his furry sheath as the tip started to grow
out of it, as both of them started their transformations in their German Shepherd forms. Before long, Jeff's
lower body had changed into Jazz, his tail swishing in front of Max's muzzle as he revealed his open whole.
"Come on boy, you know you want it!" Jeff said before he fully changed into Jazz. Both Jazz and Titus were
larger than Max though Jazz was only slightly bigger than him. Max gave his canine buddy a sniff of the butt
and a few friendly licks as he positioned himself to mount the dog. Placing his forelegs on the hips of his
partner, Max pushed inside, knotting him instantly. The bigger dog howled as he felt the member press into his
ass. At the same time, Titus had moved his way around to Max's jutting hole as he was pressed inside Jazz's
rear. Titus lifted himself on Max's back and entered the other dog. Jazz felt the weight shift and was forced
downward as his legs buckled under it. The added pressure from his now-dog husband had sent him over the edge
in pleasure as he could feel himself about to come.
Titus had been sent into a lustful state as he could feel himself already about to shoot his load into Max.
Quickly pushing forward, he knotted the other dog making Max whimper as it stretched his unsuspecting hole.
The larger dog increased his force, pushing into the dog underneath him so hard that Max was being pushed
further into Jazz. Jazz let go of any resistance as he howled, shooting a long stream of doggy cum onto the
bed sheets. Titus then went, hitting his climax and blowing straight into the young pup beneath him.
Max, feeling the warmth spreading inside him, started to pick up the pace on Jazz's hole. Getting close, Max
howled and pushed in further, cumming deep into the depths of his German Shepherd boss. As he felt his Titus'
load start to leak out of his filled hole, Max started to feel sleepy, passing out straight on the bed.
The next morning, Mark, now back in human form, work up under the sheets of a familiar bed. He was between
both Jeff and Tom who were sleeping in the nude, a strong musky scent lingering in the air from the night
before. Mark lifted up his arm and gave his pit a whiff, getting an incredibly powerful mix of sweat and dog
up his nose.
"Wow, that's nice. Should probably get a shower though." he thought as he got up. Attempting to move over Jeff
to get to the bathroom, he woke him up and got his face pulled in for a long smooch against the man and his
thick beard.
"Mornin' pup. You look great." Jeff said, getting a semi as their junk touched.
"What do you mean?" Mark asked, puzzled.
"Take a look in the mirror."
Mark walked over to the corner of the room where there was a standing mirror, large enough for him to get a
good look at himself. The first thing he noticed was that his chest was now hairy and muscled. The rest of his
body was well defined too, much of it also covered in a good amount of body hair too. He'd grown too. Before
he'd been about 5'7" but now he was just an inch short of Jeff's 6'. He still wasn't as big as Tom. The giant
was 6'5" and had the body to match it in all areas.
"Love the new ass too" Jeff said as he walked over, spreading the pup's cheeks apart "Yep, so much more hair
than before. Looks good on you; manly. Now let's see how much your junk has grown because I don't remember it
ever looking that large before."
Sticking his face right in, Jeff rimmed Mark's hole, making the pup hard. He was definitely larger. Whilst
before he'd only been about 5 and 1/2", he was now definitely hitting about 8".
"Hey come on guys. If you're going to start frolicking around, at least wake me up first- WOOF! Mark, you
certainly changed overnight!" Tom said, moving his way over to the mirror as he started stroking the pup's
cock.
"OH FUCK!" Mark shouted as the two made him shoot a load. The overwhelming hormones still lingering in his
system made too sensitive to hold on. Tom walked over to the mirror and in one lick, cleaned off the spunk.
"Mmmm, salty" he said, pushing his lips against Mark for a quick kiss "Now go on, get a shower. We've got some
stuff to teach you soon. You got two papa dogs now and we're going to show you everything you can do with that
brand new body of yours."