Tammy undid the belt on her robe and slipped out of it, dropping it off the table and enjoying the admiring looks from both Daddy and Big Sis.
Jenny had to admit, the little tramp was looking pretty sexy this morning. She'd obviously been trying to make sure to outshine her big sister. She wore a slightly see-thru white cami and matching panties, and thanks to her oversized melons pressing from underneath against the cloth, they had a good view of her candy-pink tips.
Jenny slipped out of her robe too, and climbed onto the table, then Tammy slid across the table to join her, still giggling. But Jenny became determined to please her Daddy and took her little sister's hair firmly in her hand. Jenny's sudden assertive attitude stopped Tammy's giggles short as she brushed her lips across her little sister's mouth and followed by tracing her lower lip with her tongue.
At first, the younger sister stiffened in surprise, her eyes growing wide, not ready for Jenny to be so aggressive. Her big sister wasn't hesitating at all to kiss another girl and and she was not even hesitating to kiss her own little sister!
Then Jenny felt a thrill as she saw traces of lust replacing the uncertainty in Tammy's eyes. Daddy wanted them to make love, and that's all the reason Jenny needed to start burning with desire, but it looked like Tammy didn't need much encouragement either!
Jenny knew that her little sister didn't know what she was in for! She wanted to punish Tammy for all the flirting she'd been doing with Daddy, trying to steal his attention all the time, but she decided the best way would be pouring every bit of her lust and desire into the little tramp until she couldn't think about anything else except pleasing her big sister instead!
After the first kiss, Tammy began breathing hard and after the second, stronger one, she stared back into Jenny's eyes, still uncertain but definitely aroused. She was definitely feeling the same desire as her big sister, she just wasn't expecting Jenny to be so assertive!
On the third kiss, they both caught fire. They crushed their lips together, opening their mouths and probing deep with their tongues, while Daddy calmly began enjoying his breakfast.
Tammy's moans began when Jenny's hands began roaming. They were still in their choices of sexy things, and naturally, the little tramp would pick one that came off easily. Tammy's camisole fell from her tips with a loose open hem, without any kind of bra under it, so Jenny's fingertips easily slipped beneath to skim across the skin of Tammy's breasts and tease her nipples with nothing in the way to stop her at all!
As Jenny continued kissing, her hands caressed and groped Tammy's boobs lovingly, then moved on to other parts of her body. Tammy kept up, kissing with eager energy and squeezing Jenny's tits in return. But she was feeling her through the cups of Jenny's nightie, and she wanted to feel Jenny's skin! She began pawing to remove the top. Jenny's nipples stiffened as she imagined how the little tramp's hands and mouth would feel on them once the cloth was out of the way, but she wanted to tease her longer, so she didn't help.
Whimpering, Tammy had both hands on Jenny's bosom, kneading and squeezing. While she was occupied, Jenny's hands slid down her back and into the bottoms, her fingertips sliding onto Tammy's ass.
Tammy suddenly stopped and ripped of her own top, pushing out her beautiful boobs, with nipples firm and proud, and began massaging herself while demanding, "Take yours off too!"
Jenny shook her head while pushing Tammy down, backwards, leaving her head hanging off the edge of the table while her lips re-captured Tammy's, one hand still under her ass while the other groped her boob again. Then she sat back while yanking Tammy's bottoms off and pulled her legs upward to sweep them off.
Her little sister remained stunned long enough that Jenny could crouch between her legs on all fours, her hand again groping Tammy's tit while she snogged her yet again, this time continuing long enough they were both starting to get short on oxygen before she let go.
"Listen, you little tramp," she told her while kneading her tit. "From now on, when you want your big sis to do something for you, you have to do something first."
"What?" her little sister breathed as Jenny settled down beside her, her hand traveling down her sister's body.
"From now on, you owe me an orgasm before I do what you ask."
Tammy's eyes grew. "I have to make you cum?"
"Nope," Jenny told her with a smug smirk as her fingers reached her little sister's pussy. "You..."
Her finger tip traced the length of Tammy's slit. "...have to cum..."
She rubbed gently. "...for me."
"Huh?" Tammy asked as Jenny's fingers began exploring. She hadn't touched another girl's pussy before, but of course, she knew everything she needed to about it. She used her own every day.
"You're so fucking wet right now, you little tramp," she told Tammy as her fingers worked here and there. "As a slut, your job is to be used and to cum for the one using you, got it?"
Tammy nodded with her mouth hanging open, unconsciously opening her legs further as Jenny worked. They kissed again, and then Jenny began working her way down Tammy's body. Her neck, then her shoulder, then finally her heaving boobs came into view, and Jenny greedily tasted her sister's puffy nipple for the first time. It was firm and salty with sweat, as Tammy's soft boob wobbled against Jenny's hungry mouth.
Wrapping her fingers around Jenny's hair, Tammy urged her head to move farther down. The little tramp must be letting the boys lick her pussy, because she clearly knew what she wanted Jenny to do. But Jenny resisted for a while, wanting to taste Tammy's soft bosom longer.
Their uncle, Mama's brother, told them that they both got Mama's face, but only Jenny got her blond hair while only Tammy got her boobs. Jenny's were still nice, but they were normal sized boobs for a young woman, not the huge ones that Mama had and Tammy would surely finish growing soon. When Uncle Jay was their wedding photographer, he recorded Mama's F-cup perfection for posterity with some nude bridal photos. Jenny loved those pics of Mama, and she agreed with him. These boobs she was enjoying now were surely growing up to be the same!
Finally, Jenny let Tammy push her southward, until her tongue could join her fingers in enjoying Tammy's wet treasure. It was her first time being looking at another girl's sex from this close. She marveled at what a pretty little pussy it was. A guy's erect cock made her horny and felt good inside her, but it wasn't as beautiful as a girl's freshly-waxed pussy!
She slid her fingertips across it and slipped a finger inside her sister's glistening folds, the first time she ever entered another woman, and now she began adding more while her lips began kissing and sucking Tammy's swelling clit. Her sister moaned and fondled her hair as she became more vigorous with her lovemaking.
As Jenny kept happily made love to the little tramp, her father enjoyed the show while eating the breakfast they made for him, but now he was texting something! Then, he said something amazing!
"My friends want to watch also, so just keep going when they come in. You sluts aren't allowed to stop fucking, you understand?"
With a thrill, they heard the front door open and footsteps coming down the hall, and nervously wondered who would come in!