Leah gets a present...

"Fuck...Leah...you feel so good..." you moan. Riley's panting with pleasure at the oral she's receiving, but she still spares a moment to shoot you a venomous look. No, your angel is not happy about sharing you.
You stop pumping to instruct Leah to climb on top of Riley. Now both cunts are in easy reach, and you can freely move between them at your leisure. For her part, Leah kisses Riley passionately, and Riley grips her shoulders and back as you pound her, while fingering the girl on top of her.
"I'm....fuck...I'm so glad I came home early... fuck Brian and his coke dick." She looks back at you. "It feels so good to have a real man's cock, Mr S."
"You're welcome, Leah." You pull from Riley's snatch as it shudders from an orgasm, plunging into Leah's once more. You don't know if you can hold out much longer.
"Oh...fuck..gooddd....damn....thank you....Riley...." Leah moans, kissing Riley's neck as you pound. "I'm cummmming!!!" Leah convulses.
"Me, too...." you shout, and release your load. You think you hear Riley whimper, "no..." beneath the sounds of your combined pleasure.
You roll onto your back, exhausted. Leah rolls off Riley, laying between you, with her head resting on your arm.
"Mr. S. That was amazing. A literal dream cum true." She giggles at her wordplay. You look over her head at Riley, who has a pout on her face despite her own panting.
"Riley... what's the matter?"
"You... you came in her!" Riley crosses her arms.
"Riley." you reach out to touch her cheek, but she turns away. "Riley Marie. Look at me when I'm talking to you."
She turns, defiance on her pretty face, but she obeyed.
"What's the problem?"
"I...I was supposed to....you were supposed to..."
"I was supposed to finish in you? When did we agree on that?"
"We didn't, daddy... you're supposed to know that...."
"Baby..." you pat the bed on the other side of you. "Come here."
She reluctantly climbs around to lay on your other arm.
"Maybe..." Leah starts to slink away, "I should go...let you two talk?" But you grip her shoulder.
"No." you hold Leah fast, turning to look at Riley and hold her shoulder, too. "Riley, I'm sorry that you wanted me to finish inside you, and that I didn't. It's just how it happened, ok? It doesn't mean I don't love you, or that Leah was better, or anything like that." You kiss her forehead. "How could anyone be better than my angel?" It's a fucked up sentiment, you know, but strangely, it seems to cheer her up.
"Ok, daddy..."
"There's no need for jealousy."
"I know."

The three of you relax for a few more minutes before Leah offers Riley the use of her shower. The two girls slip off together while you lay there, contemplating your depravity.
Leah returns first, wet-haired and clothed. She leans down to kiss you. "This was fun. We should do it again, sometime." She picks up your phone from the end table, putting in her number.
"Definitely."
You head out, and Riley tells you that she's going to pick up Allison and meet you back home.
You pull into the driveway around 2:30.