Everybody featured in this story is at least 18 years of age.
*****
Heather and Alex Stockwell made out on Heather's bed. Heather and Alex were siblings, and Heather had known for a long time her younger brother secretly wanted to have sex with her. While Heather knew Alex's feelings for her were wrong, the idea also intrigued her, and she couldn't help being a little curious what it would be like with her brother. Alex also knew his feelings for his sister were wrong, but couldn't help watching her undress, and lusting after her. He was genuinely surprised when, while watching her, Heather invited him into her room.
"Oh, God, Alex," Heather gasped between kisses, "I love you so much..."
"I love you, too, Heather..." Alex whispered into his sister's mouth. As their tongues wrestled in their mouths, Alex groped his sister's large tits through her bra. Heather reached under her, and unhooked it, then pulled it off, and tossed it aside, and Alex immediately started licking and sucking on her large, brown nipples.
"Uhm..." Heather moaned. Her brother sucking on her nipples was making her pussy very moist. She also grinned as she felt Alex's hard cock rubbing against her leg through his boxers. Alex moved down, kissing down his sister's round, soft belly, until he got to her panties. He could already smell how wet Heather's cunt was before he pulled the crotch of her panties aside, and then he saw she was so wet, her pussy hair was matted to her skin.
Alex breathed in his sister's twat smell, then slid his tongue inside her juicy slit, tasting Heather's pussy. "Oh, God, Alex..." Heather moaned, her brow furrowing, as she felt Alex's tongue explore her dripping snatch. "Oh, God, yes! Yes, yes, yes!" Heather grabbed her tits and dug her nails in, when she felt the orgasm coming. "Yes!" Heather came, screaming so loud the whole family would've heard if they were home, and clawing her tits so hard, she nearly broke the skin.