sketches for youngest daughter turning her big sis and mom into titty fleshlight pets
overworked office lady smoker recently divorced milf comes home catches her degenerate girlfailure youngest daughter getting a titjob from her meek nerdy 4.0 oldest daughter
mom makes them stop, gives them a talk about how they cant be doing this, theyre sisters, lil sis shouldn't be distracting big sis from her studies, lil sis should be trying to get back into school or work. tells big sis to leave them alone to discuss career plans with lil sis
cut to lil sis x mom titjob "you can't be taking out your urges on her, she has a promising future" "you're just jealous that her tits are bigger than yours" "shut up theyre not i'm not my tits are huge"
more lil sis fucking her big sis and mom being the others backs.
eventually big sis sees them but doesn't let them know she's there, watches them fuck in secret and plays with herself. after they leave she masturbates smelling moms used panties or drinking from the used condom. lil sis catches her, fucks her silly, bullies her for being a degenerate fapping to her lil sis fucking her mom
new scene of lil sis fucking mom, mom trying to suppress how good it feels how much she loves her daughters cock. the moment shes about to cum, lil sis tells big sis to come out of the closet, mom cums while telling her (favorite) daughter not to look, but being seen makes her cum harder
mom is fucked stupid and into subspace, starts calling lil sis "mommy", big sis spanks/hits her A) for being a humiliating embarrassment of a mom calling her youngest daughter "mommy" and B) for all the academic and career pressure she puts on both her daughters but especially oldest daughter. daughters team up to bully her until she cums a few more times
big sis pulls mom off lil sis cock, "please mommy let me worship your cock, you're my REAL mommy, you make me feel good, i need to worship my mommy" and sucks moms juices off mommys cock. mom cries "but im a good mother" while masturbating and scooping up the creampies she got from lil sis to eat them
big sis keeps bullying mom until lil sis withholds penetration (anal?) "be nice to mom/be nice to your new sister" mom eats big sis pussy while lil sis fucks her ass and mom sucks lil sis balls
lil sis makes them give her a double titjob and makeout around her cockhead to makeup and say they love each other and they both love "mommy"
and they all lived happily ever after
and youd maybe have an underlying thread that the mom's fixation on academics/career is sympathetic fear stemming from the ways hubby stole her career from her by getting her pregnant and therefore taking away her upward mobility before leaving her with two kids; something about lil sis sending sex tapes to ex husband cucking him.
if you'd wanna fixate less on the man in particular, you'd have an underlying atmosphere of lil sis degen vibe stopping her from holding a job and making money, but by the end she's found a way to embrace the degeneracy and make money, ie livestream/Fansly fucking her mom and sister, thus providing financially for her family, thus cementing her role as "mommy"