Crossing Over 8

He laid down and I on top, kissing wildly and full of lust and desire and extreme want. He pulled away and breathed heavy, his eyes looking into mine. I rubbed my pussy up and down the length of his cock, kissing his neck.
He closed his eyes and held his breath, letting a small moan escape. I reached down to see he'd already used spit or something to make his cock wet for me, and I lowered my pussy onto it.
Bouncing up and down, I was facing Alex this time and I could see his face as it was overwhelmed with pleasure. He started pumping to meet my thrusts making it all the more erotic. After a sharp loud moan, he threw me backwards and towered over me, still thrusting. I could feel his dick as he was growing, stretching me out, making me scream.
I screamed Alex, and he moaned out my name. With a final tug he exploded, screaming and then collapsing over me.
It took me a moment to notice that he was hugging me. This can't be happening, I can't be in love.
Rebecca had been looking at us with watchful eyes. "That's how boy girl sex goes down then."
"Why?" Alex breathed. "Are you saying you want to try it?"
"No, but I'd like to get involved next round."
I was still panting, but I leaned Alexs head back to me and kissed him. His dick was still in me, he already started to pump.
"New position," I whispered.
He moved me to my side, and he knelt down, pressing his triple thick cock into me. I can't believe that at the start of the night Alex was gay.
The moaning and pleasure and shivers started up again, and Rebecca lay facing me and wrapped her legs around my belly, thrusting herself into me.
I breathed in sharply and bit a finger, but she simply pulled my hand away and started to make out again. Alex leaned down and started to work on the breast that he could reach, thrusting harder into me. I screamed and came onto Alex right before he did into me and Rebecca did on me. We collapsed in a heap. Rebecca got dressed and left.
I straddled Alex and laid on him, planting a very soft kiss on him.
"More sex?" he asked, surprised, out of breath.
I giggled and shook my head. "Just cuddle."
I really fucking wish I hadn't fallen for Alex.