Take Anna's hint...

I was throbbing with desire all over. Not just my cock, which was aching more than ever to finally enter Anna... but the rest of my body as well, which felt hot and needy under Mike's attention.

As my sister's words sank in I realized I had only two choices...ask for Mike to fuck me and become the centerpiece of the three-way between my sister and her boyfriend. Or reject Anna's offer and be left to myself while Anna and Mike fucked right in front of me.

To my lust-filled mind, that was **** at all. A mix of shame, nervousness and raw desire in my voice, I gave in and did what I knew Anna wanted from me.

"Mike, please...I need you inside me!"

My own body filled with desire as I begged my sister's lover, and I realized that the thought of Mike fucking me turned me on far more than I cared to admit...

In my ear, Anna let out a quiet moan of pleasure, as if hearing me ask for Mike to take me had turned her on even more than it had me.

As for Mike, he didn't need to be invited twice. Her voice still hot with arousal, Anna murmured into my ear.

"He's been wanting to do this since you put on that show for him...last time I saw him this horny, we fucked for _hours _before he was satisfied."

I felt a thrill of worry at that, but it was too late for second thoughts now. Mike was already stripping my panties of me as Anna finished speaking, his strong hands easily moving my slender legs about to assist with peeling the garments off of me.

Mike firmly grabbed my hips with his hands and I panicked for a moment as I felt a hot, throbbing pressure at the entrance to my asshole. But Anna slunk over to Mike's side again, chiding him lightly.

"You can't put that monster" she gave it an approving look as she spoke the word "into her dry. You'll break her."

Laughing, Anna gave Mike a brief kiss, and while Mike restrained himself from 'breaking' me with what seemed like a visible effort, she produced a bottle of lube from somewhere and, with a finger, began applying it to my waiting hole.

Her cold fingers sliding up into my felt more than a little good, and I let out a small moan of pleasure. I was already used to toys bigger than Anna's slender fingers, so I felt no pain, only pleasure as she seductively toyed with my soon-to-be-fucked asshole in front of her waiting boyfriend.

Mike's hands continued to grip my hips ever tighter as Anna lubed me up, as if making sure I wouldn't escape. Nothing in the world was going to stop him from taking my ass the moment Anna finished her work, and I saw Anna shoot me a teasing grin as she slowly withdrew her fingers, mouthing the words "good luck".