Mom indulges you.

Mom can't help but smile at you.

"You little slut! Get one taste of dick and you're screaming for more?"
You squirm and moan on the floor.
"Don't do this to me, Mom! Please don't!"
You try to pull your shirt over your head but it gets stuck under your breasts.
"Ah, shit..."
You struggle to your feet, knees weak from the **** of the face-fuck you just got from Mom and the finger-fuck you're giving yourself.
"You can't just shove your prick down my gullet and not expect me to feel something!"
Mom looks at you incredulously.
"I know. I'm... I'm so fuckin' horny right now, it's crazy! I hate it. I fuckin' hate it! I don't want to be like this! A dried-up old lady who can't keep her clam jammed for more than two seconds!"
Mom disagrees with this.
"Now, don't say that..." She says. "I can tell you that you are quite the looker!"
Ugh. "Don't say that, Mom. That just makes it worse."
"I-"
"Just shut up and fuck me, okay? We can talk about it after!"

She steps forward and pulls your shirt right off of you.
"No kissing, alright? Despite all of this, I'm still married to your father and I don't think he would appreciate that."
"No argument from me."
She pulls your panties off, sweeping an arm under your ass and lifting you up. She throws the soiled undergarment over her shoulder and reaches between your legs, pushing a pair of fingers into your pussy.
"Ohhhh, fuck Mom! I- oh -I was doing it all wrong!"
"I don't see how, you are drenched down there!"
She carries you into the shower, still running after all this. She places you down on the bench seat inside the shower. Taking care not to slip, you spread your legs wide.
"Now, be gentle alright? I'm- ah -not used to this. Any of this."
"Aw, what, you feeling a little nervous? Not so easy to beg for it when you're staring down the barrel of a loaded gun like this, huh?"
You reach up and grab hold of her shaft. She's already hard again, but you stroke her off anyway.
"What? No!"
"C'mon, we can stop anytime you like. If you feel like you aren't up to it..."
"NO! Just do it already!"
You've never seen Mom like this. She's never been the type to take what she wants so forcefully. Then again, you never thought you'd be getting fucked by a BBC in a woman's body, so maybe this whole Great Shift thing changed more than just your bodies.

She puts her hands under your knees, spreading your legs. You reach down and guide her tip into you. You can't help but throw your head back and moan.
"OHHHH!"
She slides her cock into you. It's not as painful as you were thinking it would be. It feels strange, having something go inside of you. Especially something this big. It feels so... foreign. Like a big metal rod, splitting you in half. It only doubles in pleasure when she starts to fuck you for real.
"Not the- ngh -most traditional- gh -mother/son bonding activity..."
"Ah ah- no kidding!- ah ah..."
You throw your head back, your spine arching in pleasure. Moms thick cock pounds into you.
The sound of her ballsack slapping against your taint is almost drowned out by the steady thrush of the running water. However, this doesn't stop the sound of someone clearing their throat.
Your head snaps to see who is interrupting you.