I'm planning this to be the first of several stories involving this set of characters. For the first installment, I wanted to jump straight into the action. Subsequent chapters will provide backstory and more detail. As always, thanks for reading.
*
"Where's my cock, Sue? Huh? Where's my cock?"
"It's in my ass. Your cock is...ugh... oh God, it's in my ass."
"That's right. And it's going to stay there until Kate gets home. Then she's going to replace it with a big toy she picked up today. She sent me a picture of it. It's going to stretch you out even more."
"Oh... oh, no... yours is already too big. I can't take... ugh... I can't take anything bigger."
"Yes you can, you'll see. You're going to get used like a slut tonight, but you're going to orgasm harder than you've ever done before. How does that sound?"
Her only response was a tortured moan into the pillow.
I'm one of the fortunate few who ever get to have an exchange like this with their mother-in-law. I get special pleasure out of the fact that most people know Sue as a proper, church-going housewife. But I've seen another side of her.
I've seen Sue with her mouth full of cock, staring up at me as her eyes water uncontrollably. I've seen her tied face-down on her bed with my dick up her tight ass. I've seen her with her face buried between her daughter's legs, forced to use her tongue as a tool for my wife's pleasure.
The position Sue was in right now was one of my favorites: face down on the bed, with her hands spreading her big sexy ass open for me. Sue had never done anal before my wife and I made her our toy. She still acted reluctant toward getting her ass fucked, but once she got warmed up she turned into a total anal slut, always begging to get pounded harder.
Sue's descent into anal debauchery is what led my wife to search for something bigger to split her ass open with. When Kate texted me a picture of the monstrous strap-on she had picked out, she also instructed me to get Sue ready for her, with the condition that I wasn't allowed to cum until she got home to join us.
I was starting to get worried that I wouldn't be able to hold off long enough when I heard the garage door open. Sue gave out a muffled moan that sounded like equal parts fear and excitement.
"Hear that? Kate's here to really pound you now. It's what you've been waiting for. It's what you need, slut."
I slowed my pace and tried to control my breathing. Just a few more minutes, and I could cum. The sound of my wife's high heels approaching the stairs caused my pulse to quicken in anticipation of release. I gave Sue long, steady strokes as she continued to lie there and take it like the submissive whore she was.
When I saw Kate in the doorway of the bedroom, I glanced over with a smile and slowly removed my cock from her mother's asshole. My wife looked at my engorged cock with a smile of satisfaction, knowing that it had just been plundering Sue's ass.
"Having fun, Mom?" she asked.
Sue raised her head from the pillow and cast a tired glance over at her daughter, who was slowly approaching the bed.
"Hi Kate... Tyler told me the plan but I think I need a break. He's been fucking me so hard, I can't keep going. Please."
Kate raised an eyebrow and looked at me.
"You've been giving it to her hard? I thought I told you to just get her going for me."
"I couldn't help it, babe. You know how I feel about fucking this tight ass. It just gets me so excited."
"Fair enough. Well, go ahead and cum so we can give Mom a break. You can cum on her face." Saying this, Kate pulled her mom forcibly off the bed and directed her to her knees. Then my wife pulled Sue's hair back so that her face was fully exposed to me. Taking up position in front of my kneeling mother-in-law, I started on my final buildup to orgasm. My cock was still slick from the lube and I knew it wouldn't take long.
"Right here, baby. Shoot your load right here." My wife used her index finger as a target, placing it right in the middle of Sue's forehead. Sue closed her eyes and swallowed hard, clearly not looking forward to this.
It wasn't my biggest load, but it still covered her face pretty well. I could tell how much she hated it. Receiving a big cum facial was something that she still hadn't come around to enjoying, like she had with anal sex.
Kate peered down at her mother, inspecting my work.
"Mmm, nice job babe. Thanks for holding off so I could watch that. Mom, you can keep that on your face until I get out of the shower, okay? Don't wipe it off. If anything drips down so you can get it with your tongue, then that's fine. You can swallow it. But the rest of that nice load stays on there until I'm ready to play with you. Now, you two rest up while I get ready."