“So call her up. Invite her over.”

“You kidding me?" I chuckled. "I never thought in a million years I'd be cuddling with one girl -- a half-naked girl who just had my face in her crotch -- and have her suggest I invite over a different girl to have sex with."

Belle giggled and turned back to kiss me again.

“I'm one of a kind.

Seriously, though, call her up."

“We've got to start making dinner. Your dad will be home soon.”

“Not to come over now, and not here. Tell her to come to your house at like... seven o'clock.”

I laughed.

“Funny you mention that.”

“Ungh, ungh, ungh, ungh, ungh!" Sam grunted rhythmically.

I couldn't believe we were doing this.

"Soooo fucking hot," Belle gasped beneath her breath, sitting in the desk chair with her hands in her panties, masturbating furiously.

I REALLY couldn't believe we were doing this.

“Ungh, ungh, ungh, ungh, ungh!"

Sam was buck naked and bent over doggy-style: face-down, ass-up, and hugging my pillow beneath her chest while she absorbed each heavy thrust. I held her hips in my hands, driving my dick into the busty blonde beauty from behind over and over and over again, pumping my prick with piston-like precision.

“Spank her ass!" Belle moaned.

“Spank that phat ass!"

Shaking my head in disbelief, I smiled to myself, reached back with my right hand, and let it fly...

I'm getting ahead of myself again.

It all started back when I told Belle that Sam and I had already made plans for her to come to my house at seven tonight. Mother often didn't return until nine or ten o'clock on weekdays, and even if she came home early, she'd already given me explicit permission to “entertain my lady friends". I hadn't told Belle that part though, not sure if I really believed it myself yet.

I had NOT been prepared for what Belle said next.

“I wanna watch."

I blinked in surprise. "Excuse me?"

There was no mistaking the heat in Belle's voice. "I wanna watch you fucking Sam."

“Uhhh...