As the four humans and one lab walked into the living room, no one felt at all out of place being naked. The collar had removed that inhibition.
Jim sat down in his recliner, while Mark sat down on the couch, with Cal sitting down in his lap. Katy sat on the other end of the couch with Buster in the middle. Jim noticed the canine pussy between his son's legs for the first time.
Jim started after everyone was still for a few moments, "So, are we going to act more and more like dogs?"
Cal smiled, "I like my canine influences. I don't feel bad being naked, I don't have a problem being in love with Mark, I don't feel like this is a problem."
Katy nodded, "I agree with Cal. I don't think I would keep any canine parts though."
Mark added, "Your son and I are part of a pack together, along with you, Katy, Buster, and Ginger. We will raise our young just as you have raised Katy and Cal."
Katy said, "Daddy, you won't turn into a dog on your own, you have to have the collar and dildo for that."
Jim looks over to Mark, "How did you and Cal keep the canine parts you have?"
Cal smiles, "Trade secret. You want to find out?"
Jim smiles at his son and says, "Well, yes son, I would. Your mom would love a package like your friend Mark has."
Mark speaks up, "Katy goes back at the end of the week, and we will be stuck like this without the collar and dildo. Cal and I want to remain this way."
Jim nods, "OK."
Cal is surprised, "Wow Dad, I can't believe your cool with this."
Jim looks to Cal and Katy, "I think that collar is the reason I haven't beaten Mark into a bloody pulp and told you kids to get out of this house."
Mark adds "And your dad likes my taste" and smiles as Jim's face becomes red with embarrassment.
Cal sighs, "Dad, you didn't...."
Jim took a breath and said, "Put that collar on and resist. I tried my hardest and I lost. Now I look at my son, who's now a bitch to his best friend. And my daughter is now a canine slut."
Mark nods, "That is our situation. Jim, are you serious about the canine cock?"
Jim laughs, "Hell, I don't know what isn't serious anymore. Before I saw you kids in the bedroom, I never thought about anything like this. Who was that pale skin man on Katy when I walked in?"
Cal responds, "Buster. It can make dogs human, but they have a dogs mind."
Katy tells her father, "Mom said she would be home late."
Jim looks over to Mark, "Get your stuff, and meet me in my bedroom. Buster, come here boy."
Jim gets up and walks with Buster back to the master bedroom. Cal slides off Mark into the seat where Buster was laying. Mark heads off to Katy's room to get the collar and dildo, then reappears to Cal and Katy walking to the master bedroom.
Cal turns to Katy, "Are you OK with this?"
Katy shrugs her shoulders, "I'm OK with you being Mark's bitch."
Cal sighed, "And I enjoy being his bitch too. I don't think I will let Mark do mom though. That can be dad's job."
Katy thinks aloud, "I wonder why Buster is in there with them."
Cal shrugs his shoulders, "We can find out when Mark comes back."
Katy looks to her little brother, and fingers his canine clit. Cal slaps her hand away, "Stop that." commands Cal.
"Come with me, if you stay a girl, you need to know how to clean up and that other girly stuff that Mom made a big deal about." says Katy, as she stands and walks back to her room, after pulling her brother up to follow. Katy feels like a big sister to her little brother showing him all the things he needs to watch out for with his new hygiene regimen. Cal asks, "Yeast infection?", followed by Katy's explanation. Cal inserts a tampon, and leaves it, "Careful" says Katy, as she explains all the bad things that could happen with a tampon.
"Being a girl is complicated" says Cal.
Katy nods, "It sure is." They also discuss bra's, in case Cal's breasts swell up during pregnancy. "You will be a good mom, Cal." says Katy. "Don't forget to wear clothes in public." warns Katy. Katy looks through her clothes, and finds a pair of spandex bike shorts, and tells Cal, "Try these on."
Cal slides into the shorts, tugging them into position.
Katy smiles, "Nice bulge with your canine pussy."
Cal looks into the full length mirror next to Katy's dresser, "Yea, I do look hot in these. Got anymore?"
Katy says, "Sure, just help yourself."
The two siblings continue their talk, Katy making sure to tell her little brother everything she could remember their mom said to her. Cal hugs her sister, "Thanks, let's go wait for Mark and Dad."