Kayla and Samantha are a thing

"Hm...that's mighty generous of him to be doing to her, considering all that's happened."

You shrugged and merely tapped the button to bring the camera monitors from your desktop to the larger TV screen and blew it up for your mom's viewing pleasure. There was little in the way that you hid from her these days, what with her preoccupation for taking your pants and dropping them before dropping to her knees and having her go to town on your cock. That type of thing tends to change a man's view on propriety.

That and you loved her blowjobs, you weren't going to lie.

On the screen, you watched as first Kayla was content on using his hands on Samantha as the younger woman's body reacted to his touch, the addiction increasing the sensitivity of her skin to touch in almost unnoticeable ways until the point where a flick from his fingers on one of her nipples caused a very audible moan escaping her lips and your mother had to bite down on her lips from laughing in embarrassment. Soon, Samantha was arching her back as Kayla, slipping in behind her, tweaked and pulled on her nipples. The audio didn't pick up the young woman's response but, from the looks of your mother rubbing her thighs together a bit nervously, you knew it was having the same effect.

"Pheromones tend to carry long distances..." you began, playing off your attention to the screen as a cover for you watching your mother askance. The older woman continued to try and fight the reaction her body was having to the screen where her feminized husband was locked in a lover's embrace, kissing and fondling the other woman in the room. Samantha was cumming yet again from the ministrations of your father on her clit, his fingers rotating between pressing on the little nub and sliding into her.

"Mmhm..." she muttered.

"I can turn it off..."

She shook her head and you leaned back in your chair and watched as Kayla, still able to get an erection, easily slid into Samantha and the two began to fuck on the bed. Whereas your size and width far outstripped Kayla's diminished cock, you could tell Samantha was easily getting off on it much easier and faster. It was something you knew about her that you didn't mention to anyone, not in the least your father, as you wanted to see it play out for itself. The poor scientist was too far gone to realize what she was doing to Kayla.

You were almost sure of it, now, as you continued to watch Kayla pound away into Samantha's willing and moist pussy. Unlike you, who were immune, your father was fully not. By the end of the week, if it took that long indeed, there would be little left to consider him to be your father.

Or remotely male, for that matter...