At Larissa's purring suggestion, Joe was happy to do as she wished. They did little the rest of the day, staying naked, fucking, sucking, and eating each other with short rests in between, christening every room in the house with a hot steamy romp. On the living room carpet, Larissa cried out, panting and moaning as Joe rammed her doggy style. In the kitchen, she perched herself on the kitchen table as Joe took her, standing in front of her and driving his cock upwards into her heated, welcoming tunnel.
In the downstairs rumpus room, they were in a hot 69, eagerly feasting on each other. Just after midnight, they went out onto the backyard patio, and by the light of the full moon, Larissa mounted her brother in a reverse cowgirl, Joe enjoyed the sight of her naked backside, painted in the light of the moon, moving expertly up and down, grunting and corkscrewing up and down on his cock, the tight grip milking at him until she stiffened, letting out a choked cry of pleasure, as Larissa's orgasm tightened her grip on his shaft. Joe grabbed her hips and thrust up hard, burning tingles shooting up and down his well used prick as he pumped another volley of cum deep inside his sweet sister, the ripples milking him dry. Joe and Larissa were both drained, tumbling into bed right after, they were both out like a light.
Sunday morning, Joe had recovered, his morning wood was hard and eager for Larissa's pleasure, and she took full advantage of it. Joe lay back, his eyes enjoying the sight as Larissa perched above him, then lowered her steamy heat. When she felt Joe's cock head nudging her open, she pushed down hard, and matching grunts and howls of pleasure sounded, as Larissa's heated fuck hole swallowed her brother's cock, right down to the balls. Larissa savored the feeling of being opened with his hard prick. She was beyond any kind of shame, guilt, or recrimination. The way her brother pleasured her, was too good, so they were committing incest, so what? It wasn't like she was going to get knocked up, her womb was pill-protected, it was for pure physical pleasure. The taboo nature of hot, incestuous fucking really spiced it up.
Joe savored the sight of his sister above him, pumping her hips up and down as she rode him, her tight pussy was milking him, eager to work up his balls to a creamy explosion.
"Mmmm, I love riding your prick lover, it feels so good. Let my tight little pussy milk at you, feel the grip of my tight pussy, then let your load go! I want to feel you exploding and squirting wildly as you cum, flood your sister's pussy with your load!"
"Oh yeah baby, your pussy is hungry, keeping riding me baby, my balls are heating up a big juicy load all for you!"
That just drove them onwards, Larissa had slipped a finger down to where they were joined, she was starting to polish her pearl, eager to cum, and milk her brother's prick of every drop of his hot load of sizzling spunk. She could feel it picking up, then the tingles starting down deep. Her buttocks contracted and she knew she was starting to teeter.
"Fuck me, oh god, so good, gonna cum, gonna explode, fuck yes, yes, YES!"
Larissa fell into her climax with a shriek of pleasure, she heard Joe growl "Oh fuck, Cumming, fuck FUCK!" Ahh there it was, the bloom of sizzling incestuous spunk being jetted deep inside her, it made her orgasm go on and on, enjoying the repeated pulses as Joe's cock unloaded.
Joe felt the rush when his cock went off, his sister's pussy was milking wildly at him, and his morning load was eagerly sucked out as his cock pulsed rapidly, pouring a big sizzling load deep inside her. The look of bliss on his sister's face as she rode him, he loved that look.
They sailed in the afterglow for a while, savoring the post-coital feeling.
Larissa cooed, "Guess we better get up, Mom and Dad should be home pretty soon. Now that we know how good it feels, I can't wait until we can do it again."
Joe agreed saying, "Yeah, after school. No more hanging around with my friends, I'm gonna book straight for home."
Larissa purred, "Mmmm I like that idea. We usually get home two hours before Mom and Dad, and we can put that hour to good use. And, since we are both lovers of Elaine Gelkie, it should be quite a time for both of us to go over there for a date. She got so turned on by watching us during our first fucking, she strapped on a 10-inch dildo, fucking me to one orgasm, then she rubbed our pussies together, making me explode again. Yeah, we can have a great session, I'm gonna get my strap on, and then we can do a DP on her, she's gonna love it."
