Make her wait

You decide that you can still have more fun with her. “Mom, just sit over there and watch. Don’t do anything other than watch, you can’t masturbate or anything.”

“O-Okay Ryan…”

You turn to face Kelly yet again and stick your dick in her. Looking at her face, she seems confused, although still aroused. She has no idea why you decided to plunder her yet again. Thankfully, she lets it slide, and you both spend the next 10 minutes fucking, until you climax.

You both collapse, this isn't exactly the first time you've done this today. Your mother just sits in the same place, still watching as you both rest. Her face is beet red.

Kelly is the first one to break the silence. "Ryan, this was the best day of my life. I finally got to just let it out."

You're too tired to come up with a real response to that. It does make you happy though, almost prideful. Using the last of your strength, you manage to speak. "Mom, Kelly it's time for us to go to bed."

You got up, still completely naked and led the two women to your parent's room. Or what used to be your parent's room. You and Kelly get in bed, it seems Kelly was just as tired as you, because she falls asleep as soon as she gets under the covers. You look over to your mother, and she still seems torn about joining you. With a tired sigh you give her one last order before drifting into unconsciousness. "Mom, get in the bed."

As you drift back into your waking mind, you feel something slinking back and forth on your dick. A lot of weight came down every second or so, jacking cum from your balls. The pressure built and you couldn't even hold it in.

You unceremoniously came into someone's pussy and the only thing you could let out was small moan, "Kelly"

The only response was a peck on your cheek as the mass shifted to your left. Wait, that's where your mom was sleeping! Oh, this you have to see.

You slowly open your eyes to find your mother sitting on her knees, staring at you with a hungry look in her eye and cum dripping from your pussy. The situation was enough to rouse your member from the dead. She had broken, and now you could start forcing her into whatever mold you desired.