At least 13"

“Not possible,” Natalia repeated as she looked in horror at the thirteen or fourteen inches of space between Helen’s palm. “There is no way something that big will fit into a normal sized person.” She looked at M’Ress and said. “You must be making a mistake. Your females must average much larger than us. Didn’t you tell me that John would be at least a foot, or more, taller than he is now when the nanites are done with him. Doesn’t that mean we have to grow as well to match him?”

“Hold on, John is going to get that big? Damn, I can’t wait to see that!” Helen said with enthusiasm. “How much do you figure he’ll be able to lift?” She asked M’Ress.

“Not the point!” Natalia yelled. “It’s fine for you. Your cunt is permanently cock-blocked. We’re the ones who are going to have to deal with him, and…” Natalia shuddered as her eyes dropped to Helen’s groin and added, “you.”

“If you were going to grow larger externally I would have told you so, Natalia. As for the size of my race. I am actually a little larger than average for the female's of species. I can understand your confusion, but remember we are the result of an entirely different evolutionary track than humans. Our internal organs are placed differently, and have different structures. For instance we have no heart that your doctors would be able to detect. To have such an important function consolidated in one location seems very wrong to our understanding of evolution. Rather than the method your species uses to circulate blood our larger circulatory vessels are surrounded by muscle equivalents that contracts and relaxes and thus pumps blood through our bodies. Many of our other bodily functions are equally dispersed. Our system is very redundant. A single penetration at any point on our body will not kill us. Or you now."

“What about a headshot,” Helen, an avid hunter, asked.”

“We’re getting off topic here!” Natalia protested. “Why didn’t you bring up this massive gender disparity before? She asked M’Ress in an accusatory tone.

“I did not want to get your hopes up,” M’Ress answered sheepishly. “My mother warned me the odds of a human male being able to match one of our males was very slim. Maybe only ten-percent. I can’t believe how lucky we are.”

“Didn’t want to get my hopes up!” Natalia fairly shrieked.

“You are worried. I can understand. Maybe you will be more at ease if our alpha were to demonstrate on me so you could see that it is not as scary as you think.” While M’Ress coached her words in a manner that made it sound like she was only making the suggestion to allay Natalia’s worries, the way her tail was twitching and arching away from her ass suggested she had other motivations that reassuring the tall brunette for making the suggestion. She was so obviously in heat that it made Helen wince in sympathy.

Helen was no more honest that M'Ress, however. “Well, I don’t know. It’s not exactly what you could call a natural thing. No offense to you dear. You’re cute and all, but you’re not exactly the sort of pussy I imagined trying this bad boy out on,” she said, patting her groin, where there was now a very obvious bulge showing. “Besides, the problem is that Natalia here doesn’t doubt you can take it, not really, but that she can’t. Watching me stuff you ain’t going to change that. Wouldn’t it be better to let her discover for herself that she can handle it? You are sure she can?”

“Oh, certainly. My mother would have pulled me home if her scans didn’t indicate my future pride members had made successful transitions. Internally she and the other girls are as close to being felinade as is possible.

“No fucking way!” Natalia yelled. She jumped to her feet and glared at the two females. One a predatory feline, and the other an even more predatory futa-milf. “If you think I’m going to go along with this sick little science experiment you’re insane.”

M’Ress actually looked pleased. “Yes, that is the proper behavior, Natalia. Our male will not be able to keep his claws off of the back of your neck if you behave like that. He will throw you to the ground, grind your face into the dirt and fill you with his masculine shaft as you yowl in pain and pleasure. Maybe if you excite him enough he will draw blood with his teeth as he clamps down on your shoulder to hold you in place.” M’Ress’ tail was twitching from side to side like a metronome as she enthused over her description of felinade coitus.

Natalia was not nearly as enthused as the little catgirl. She glanced over her shoulder toward the door, as if calculating her chances of escape. Normally she feared nothing in her home. After all she had a feline powerhouse armed with razor sharp claws as a bodyguard. She had never considered a situation where her bodyguard would become the one she most needed to fear.

“Honey, kitten, y'all not helpin,” Helen chided the enthusiastic M’Ress, speaking in a thick hill accent. “It’s pretty clear talken ain’t a going to convince her. We gots to show her.”

“Why are you talking like a hick!” Natalia demanded as she frantically tried to divert the two females.

“Well, considering what I’m planning on doing to you, darlen. I felt I had best get into the proper mindset.”

“You’re delusional!” Natalia accused Helen. She started backing toward her big oak desk. Helen might have found the tranquilizer gun but there were still all her toys and gear in the drawers. She was twenty years younger, seven inches taller and forty pounds heavier, than the milf. She had nothing to fear from her. It was time to alpha up and show this lady who was the master of this household. She had a twelve-inch strap on in the drawer and wasn't afraid to use it. Lets see how brassy Helen was when Natalia shoved that monster up her ass.

“You stay out of his, M’Ress,” Natalia snapped at the cat girl. This is between me and John’s mother.”

M’Ress looked surprised, and shocked. “Of course! I would never dream of interfering, Natalia! An alpha who can not maintain authority on her own has no right to the position.”

Natalia gave Helen a lecherous smile. “Time to learn who the real queen bee is here, lady.”

“Funny, I was thinking the very same thing,” Helen replied, with a smile every bit as lecherous. “I can’t wait to titty fuck those big boobies of yours and see if it’s as much fun as my husband always claimed.”