She nibbled on the rubbery glans, sucking and swallowing. She played with Cal's nuts."Baby... yeah!" He tousled her silken hair. "God, you do that goo...d! Oh shit, I love it!"Millie loved it, too. But she wanted to do more than suck him. She had to have his rod inside her.After several slurping, gliding plunges of her encircling lips on his firm prick, she raised her head. She threw a leg across him and mounted up, aiming his sturdy lance into the aching hole amid her blonde pubes. She dropped. There were also quite a lot of mutterings which I couldn't really quite make out. And then suddenly there was a louder "Oh, yessss" from my Mum, just like we'd heard this morning. And then, quite clearly, she moaned "Harder! Harder!" followed by louder grunts from my Dad. I found it really exciting to listen to and I now had a vivid picture in my mind of my Dad pushing in and out, faster and faster. Of course, it might not have been like that at all, but that's how it sounded, and I found. But … I wasn’t gay. I had never thought about another man sexually in my whole life. What was going on?I shuddered, enjoying the feeling of his hard cock against my ass. My breath caught.“Don’t?” he chuckled. It was almost a snarl. “You watch me make my girl cum, without our consent, and then you want me to spare you?”I shook again, terrified. “I-I didn’t mean too.”“Oh, just happened to be on your knees, jerking off in the moonlight, ten feet from us?”I lowered my head. Shame burned my. She kissed the air and moaned, "Oh, how much I want a cock to fuck me," Her language surprised her since she never used such vulgarities before now.She began to rub against her pussy with her left hand, reaching under her dress. The petticoat rustled softly as her fingers probed her sex. She draped her legs over the arms of her chair, arranging her dress and petticoats so her exposed pussy would be highlighted. It was mid summer, the air conditioning was at its usual inadequate temperature.