Werewolf Incest (with cub)

>father gets cursed with werewolfism at work
>either he's a monster hunter, or works for some kind of secret government organization that monitors supernatural creatures
>family's pretty chill with it
>he explains to them that they'll have a treatment for him in no time
>in the mean time he just looks... different, and big, and hairy
>youngest son loves it
>he feels like his dad's become a superhero
>always asks him what it's like, if he's got super strength or super senses
>finally ends up asking him if he can be a werewolf too
>dad hesitates, for just a bit too long
>tells the son he's far too young to handle a change like this
>the dad hasn't told anyone that ever since his change, he's feeling super horny all the time
>he's just about holding it in check
>but something about picturing his youngest son changing into a wolf like him tips him over the edge
>that night he has a wet dream of fucking and changing his son into a wolf
>wakes up with a barely stiffled howl
>wolf-bukkake all over the bed sheets
>grumbling, he brings the mess over to the washing machine
>youngest son was woken up by the noise
>goes to ask what's going on
>the dad sees his son
>the scent of his own cum filling his nose
>acting entirely on instinct now he grabs the boy and shoves his face in the sheets
>smears the boy's face in wolf seed
>in a surprisingly deep voice he growls out that this is what being a wolf feels like
>the boy is scared but once the cum touches his tongue, he realizes he wants more
>dad still has enough sense to not take his son
>not yet
>but once the boy starts to change he should become strong enough to take his father's knot
>that mental image has the dad erect in no time
>he starts jacking off
>despite having just cum, he's fully hard again in no time
>he growls at the feeling of his rough paw-pads gripping his swelling knot
>he's soon shooting more cum onto the boy
>he tells his son to lick it all up
>once he's done, the dad takes him back to his bedroom
>the son asks if they can do stuff like this again
>the dad's sobered up by now, realizing it was a mistake
>but looking down at his son, he sees the boy's eyes are now amber, like his own
>he grins and says that yeah, they can do it again
>but he has to promise not to tell anyone else about it
>it'll be their secret

(A few weeks go by, with no new developments regarding a cure for his curse.)

One night the dad wakes up from his wet dream to find someone actually sucking his cock.  He finds his wife sitting between his legs with his canine shaft stuck deep in her mouth.  She's already gaining wolf-like characteristics (pointed ears, a floofy tail, amber eyes).  They had agreed to discontinue any sexual contact between the two of them until he got cured, because sexual transmission of the curse was a very real possibility.  He asks what's gotten into her, and she tells him it started last week.  He must have been sleepwalking.  She had seen him get up and go into their bathroom, a huge slick erection bobbing in front of him as he went.  He started grunting and growling and jacked off his big wolf meat.  She called to him but he ignored her.  After a bit he finally came with a muffled howl.  His cock shooting streaks of goo all over the bathroom.  Some hit the bathtub, some hit the mirror, some stuck to the floormat.  Then he grunted, turned back into the bedroom, and collapsed onto the bed.  She realized this must just be him being pent up since he hadn't been able to get any release with her since the change.  She didn't realize that he'd been getting blowjobs from both of their sons for quite a while now.

She went to go clean up the mess before morning came to spare him some embarassement.  But upon getting up close to the lewd mess, she got a whiff of his musk.  The whole bathroom stank of wet dog and concentrated male sex.  She tried to shake it off and keep cleaning, not realizing that she should have worn rubber gloves.  Her hands tingled as it touched with the wet cloth that was soaking up all of that cum.  She gasped as she saw her nails were growing dark and pointed.  His cum was so potent, so filled with magical power, that even without consuming it it had affected her.   What would it do if she actually tasted it?  And after that all conscious thought left her.  She finished cleaning up the bathroom using her tongue, scooping up every remaining streak of delicious wolf seed.  She ended up on all fours licking the floor, like a dog who'd found a tasty treat.

After that she started getting her own wet dreams, as well as intense desires for his canine form, and... His wife looked down in shame and showed him what she meant.  Rising from between her legs was a plump looking, grey-furred sheath, with a slick black canine shaft rising from it.  A glaring mark of masculinity on her otherwise feminine body.  But female for how much longer?  The dad briefly considered, this was probably why all of those wolf pack's they'd been investigating had been all male.  Any females they did convert just ended up becoming male as well.  He embraced his wife and told her everything was going to be all right.  They'd fix this.