"Take that dress off!" William snapped.

In a daze of horror, Mirabelle undid her belt, letting the dress drop to the floor as she stared in absolute horror at her niece sucking on her father's cock. She shivered with desperation.

Manfred's eyes were on her now, taking in his sister's body.

Mirabelle shuddered and wept as the luscious curves of her body were revealed, and even Dustin gave a whistle of lust and started working on his cock as he watched.

Manfred's pants were off and Nichole began to suck while Eileen pulled her father's briefs over his massive boner and down.

"The slip!" William ordered.

Mirabelle slid the straps of her slip off her shoulders and let it slide down. Now she was nearly naked. Her tits were in full view and only her panties protected her pussy from their stares. She stepped out of the ripped slip, still clad in panties, garter straps, stockings and shoes. Suddenly she wished she wore tights.

"Jeez!" Manfred gasped as his cock jerked in Nichole's mouth. "What a fuckin' figure, hey, William? No wonder you wanted to get in her pants!"

William chuckled and walked slowly around the cowering Mirabelle, drinking her full beauty in.

Mirabelle had long, shapely legs. The curves of her calves were tight. Her waist was slim, and her tits large and luscious.

"Slide the top of your panties down," he said. "Don't take them off, just slide 'em down."

Mirabelle moaned and obeyed, the tit-clamps swinging from her nipples, sending sparks of pain through her with each movement. The top of her panties slid down almost to her pussy as she worked them lower. He made her tuck it in as if she was wearing little bikini briefs.

"Yeah!" Now, walk around a bit, I wanna see your ass move.