Have her lie down on the patio lounge chair.

"Lie down, Red," Frank ordered, pointing to the cushioned patio lounge chair.

The doctor knew what he had in mind and did what she was told, lying back on the sturdy chaise chair and spread her long, slender legs as wide as possible.

"Damn, you're hot, doc," he muttered, savoring the sight of the gorgeous redhead with her soaking wet snatch with a thin red landing strip.

Katy never had sex with a total stranger, at least sober, and the months without being fucked a man in an hedonistic island had pushed her over the edge of the limits of her sexual constraints. She stared up at Frank with lust in her emerald eyes and begged, "Fuck me!"

Women begging for his cock excited him, making him feel like the young stud he once was before he got married and settled down. Frank grinned as he bent over the doctor's lithe body, resting his hands on the armrests.

"Let me help you," she whispered, reaching between their bodies to guide his thick cock to the entrance of her hot depths. They locked eyes as he nudged the tip of his cock past her pussy lips.

"Jesus, you're goddamn tight, Red!" Frank groaned as her cunt slowly swallowed his cock whole. Katy clenched her eyes closed and let out a low moan of approval while her pussy was being stretched almost uncomfortably wide by his thick shaft.

The privacy of Frank's penthouse suite meant that no-one else could see him madly pounding the redhead doctor like an animal in heat and very few people could hear the sounds of her moans and his balls slapping against her ass cheeks.

"Fuck yes!" Frank repeated as his cock churned in and out of her cunt like a well-tuned machine.

"Oh God! Oooh God! OOOOH GOD!" she screamed as her body shivered in her approaching climax. She dug her long nails into his forearms while her pussy spasmed around his pistoning cock.

His primal animal instincts was telling his body to cum in the doctor and flood her womb with his seed but the sliver of human logic and reason that wasn't consumed by his lust for pussy reminded himself that the experimental **** he took allowed him to keep fucking her for hours, even ejaculating several times, if his heart could handle it.