On your balls

"Yeah, okay. Come here sis," you groan, beginning to thrust in and out of Christine's mouth.

Julie kneels down beside you, letting out a yelp as you grab the back of her head and pull her towards your crotch. Getting the message, she begins to lap at your balls, her tongue gliding onto her mother's lips with every passionate thrust you make.

It's an obscene sight; Christine's robe flies practically off her body as she's tossed between you and your father, while Julie's tight dress just can't take the pressure of her kneeling position, sliding up to expose her ass. As you watch the neckline fails as well, allowing her round breasts to pop free. You grab one and grope it roughly, shoving your cock deeper and deeper into your mother's mouth.

Suddenly, she moans around your shaft as your father's body jerks; he must be cumming inside her. You can feel that you're about to let loose as well, but you have bigger plans for you load than simply filling up your mother.

Pulling out partially, you allow Christine to continue working your tip while Julie moves up to your shaft, her lips gliding up and down its length. As you feel your cock begin to pulse you pull out, placing a hand on your girls' heads and holding them side by side. They look up at you, mouths agape, as you shoot thick bursts of cum onto their faces. You close your eyes and cry out as you orgasm, your knees getting weak as it lasts for what seems like an hour.

When you finally look down at your sister and mother, they're quite a sight. Mom caught the worst of the blast; there are white globs sticking in her hair, streaks running down her face, and even more seed is dripping onto the floor. Your sister managed to catch her portion in her mouth, but it's quickly overflowing; she licks her lips, trying in vain to stop the stream of cum that's falling between her exposed breasts. Already you can see the front of her dress darken as it soaks through, working its way from cleavage to crotch.

Unfazed by the river of cum, Julie smiles as she glances from you to Christine. "Hah, good catch Mom," she says sarcastically. "You're a MESS."

"Hey!" your father grunts. In all the excitement you'd forgotten he was there! He's leaning back in the recliner, stroking his soft, sticky cock idly. "Don't you talk to your mother that way. Be a good girl and help her clean up!"

"Okaaay." With that, Julie dives in, licking and kissing Mom's face in an effort to swallow some of the cum. She's not being very efficient, since her mouth is already full of the stuff, but you and Dad both enjoy the post-fuck show.

To your surprise, the girls grow more and more passionate, eventually collapsing into a sticky heap as they give in to their lust and begin to kiss and grind in earnest. After lying her back on the floor, Julie climbs atop your mother, straddling her bulging body as they make out.

To your even GREATER surprise, your father seems disinterested in the spectacle, tucking away his cock and heading back upstairs. "Work to do," he mumbles as he rounds the corner. "Have fun."

Pushing away your sister for a moment, Christine calls out to you. "Won't you join us, John?" she pauses to lick some of your seed off of her lips. "I'm sure you have at least a little cum left..."