Get Julia on her hands and knees.

I stared at Julia's beautiful body, hesitating of what to do next, but snapped out of it at the sound of Katsumi's loud grunt of approval after her pussy swallowed Bill's cock whole from one hard thrust.

I offered my hand to Julia to lead her around her bed and motioned her to get on all fours at the edge of the mattress. She paused for a moment before realizing what I had in mind -- I wanted to take her from behind so we could both watch her friend be fucked by Bill, that way it would be just about sex and not have any possible intimacy with of us facing each other while we grinded our loins together. As she climbed up on the bed, I tore off my t-shirt, shorts, and underwear before standing behind her tone ass.

She looked over her shoulder and nodded at me. Any nervousness she had left was replaced by lust caused by the scene of her best friend being pounded mercilessly by my buddy. "Fuck me, Mike," she begged.

I gripped her ass cheeks and parted them slightly to allow me a better view of her puckered starfish and wet snatch. I nudged the tip of my cock between her pussy lips and then pushed my hips forward. Julia let out a low moan as my thick cock stretched her tight cunt apart.

Bill, without slowing his steady tempo of hard thrusts, turned his head around to look at Julia and me after hearing her cries of pleasure and gave us a smirk. He paused briefly, much to Katsumi's dismay, to shuffle the Japanese girl, with his cock still buried deep inside her, over onto the bed so all of us could watch each other fuck.

The girls were definitely more turned on at the sight of their best friend being fucked from behind because they were aggressively pushing their asses back against our thrusts, driving our cocks deeper into their cunts. I certainly liked watching the petite Japanese girl's large tits violently swing back and forth while Bill hammered her.

Bill and I gave each other knowing nods, agreeing to play our little game of seeing who could make our partner orgasm more -- after each time the girls climaxed we would switch positions -- before cumming ourselves.

Katsumi came first then Julia shortly after. We quickly unceremoniously pulled out of the girls, not allowing them to recover from the pounding they endured, and flipped them over onto their backs. We held their slender legs up in the air as slammed back into their pussies' vice-like grip.

The suite was filled with moans, groans, grunts, and flesh slapping against flesh as the girls were brought to from one orgasm to another.

Luckily both girls were light and at least half a foot short than Bill and me because we had the girls skewered on our cocks while we stood up. This was a position we didn't try, at least not for very long, with our taller and curvier wives.

Despite the girls wrapping their arms around our necks for support, it was a great test of strength and stamina for Bill and me. My arms were getting tired of raising and lowering Julia on my cock -- I just wanted to let her down on the side of the bed and savagely drill her cunt until I empty my balls in her. I glanced over and could see Bill was tiring too but luckily for us the girls simultaneously stiffened and shivered from another orgasm. Bill and I quickly set the girls down and threw their legs over our shoulders before hammering their spasming pussies.

"Fuck me, Mike! Oooh! Harder!" Julia pleaded. "Oh God yes! Harder!"

Katsumi was opposite of her girlfriend -- she squealed like a little mouse while Bill ravaged her tight little pussy with his big cock. I guess it was her passivity that excited him since Emma was anything but submissive in bed unless role-playing.

"FUUUUUUCK!!!" Bill roared with both relief and disappointment when he finally got to flood Katsumi's womb with his cum. He still kept pumping until she came moments later.

"Cum in me," Julia whispered, staring up at me with tenderness in her eyes.

I nodded and let out loud groan before my cock jettisoned what felt like a gallon of semen into her cunt. After my last spurt she pulled my face down to hers and kissed me passionately while her pussy muscles massaged my deflating cock. "Thank you for making me cum so many times, Mike," she whispered after breaking our kiss.

"Don't thank me yet because the week's not over," I chuckled.

She laughed and kissed me again.

Yeah, we took longer than expected to help the girls with their luggage back to our cabin.