Dear reader, I've included the last few paragraphs of Zena Pt. 04, so you can get a sense of what is happening without needing to read the previous part. To fully appreciate this, it's best to read all previous parts.
Zena went downstairs, very quietly. She knew her father would be in his study. She giggled inside, thinking it should be called his wanking room. She peeked around the doorway and saw her father dressed in Penny's panties. This was the time! She walked in.
"Dad, what the fuck!?"
Bill didn't know what to do. Should he try to hide his erection, that could be seen through the sheer transparency of the panties? Should he try to hide the fact he was wearing panties? Where was his robe? He needed to cover up. How could he explain this?
Zena's pussy twitched at her father's predicament. She was surprised at that, but then thought what a genius her Aunt Penny was. She let her pussy relax and she orgasmed. Her pussy leaking masses of juice into her own panties.
They were both so caught up in the moment it took them some time to realise that they'd heard the front door open and footsteps approaching them. They were both rooted to the spot when Aunt Penny and Uncle Nic entered the room.
Bill knew he had nowhere to hide, but his erection still didn't subside. He felt a mix of emotions. Embarrassment, horror, humiliation and sexual excitement, especially when Penny walked up to him and stroked his hard cock through the sheer panties.
She cupped his panty clad balls and whispered into his ear, "Do your little plums feel nice sitting in my wet cunt juices? Did you sniff them? Did they smell good?" She didn't expect any answers, his cock throbbing and jerking in her hand were answer enough.
Penny turned to to Zena to see Nic embracing her from behind, one hand fondling her left breast through her silky blue nightie, his other under the hem of the nightie, toying with her pussy. Penny could imagine his stiff dick poking into her pillowy arse cheeks. The look on Zena's face showed she was in seventh heaven.
"Nic, I don't think Bill appreciates what a gorgeous, sexual being his daughter is, why don't you show him what hot body she has?" Penny teased.
As Nic revealed his daughter to Bill, Penny caressed his balls, cock and arse cheeks through her panties he was wearing. Nic took the spaghetti straps of Zena's blues silky nightie off her shoulders and slowly lowered the top to reveal her gorgeous breasts.
He fondled them lovingly and lustily. Zena's head went back and she groaned. Penny said to Bill, "Here you've been, wanking over women on the internet and all the while you've had this magnificent pair of breasts staring you in the face." She gave his arse a hard smack.
"I mean, look at them, they're so full and perfectly formed. They must be D cups."
Zena interrupted, "Double D, Auntie," before groaning at Uncle Nic's ministrations.
"Double D, makes you a double dope, Bill," Penny continued, "And look at those succulent stiff nipples. Show him how hard they can get Nic."
Still holding her from behind and grinding into her wonderfully full arse, Nic supported Zena's large breasts in each hand, kneading and massage them while deftly taking each nipple between his thumbs and index fingers, gently pinching them, pulling them and twiddling them, causing them to stiffen even further.
Zena groaned and sighed, "Oh, Uncle Nic! You really know what a girl likes. You make my pussy so wet!"