Bend her over.

You offer your hand to help Sara stand up then you grab her by the waist to spin her around. Understanding what you have in mind she bends over, placing her hands on the tiled wall on the end of the shower. She looks over her should and smiles, "Fuck me, Mark!"

"Yes, ma'am!" you salute and place your hands on her plump ass cheeks to spread them to give you a nice view of her puckered asshole and pussy. "Help me put it in."

She reaches between her thighs and grabs hold of your cock head to guide it to her pussy lips. You push your hips forward and the two of you let out low moans as her cunt slowly swallows your cock whole. Grabbing her wide hips you start thrusting, the sounds of flesh slapping against flesh mixed with splashing water.

"Ooooh yesssss.... Fuck me!" she cries. "Harder, Mark!"

"I'm trying," you groan, slamming even harder into her cunt.

"Uh! Uh! Uh!" Sara grunts repeatedly as her ass ripples with every hard thrust of yours it absorbs.

You bend forward and reach around to grab her swaying hanging tits. "Cum for me, babe," you whisper.

"OOOoooooh fuuuuuuck yessssss!!!" she screams as her pussy muscles spasms around your pistoning cock. You stop thrusting momentarily to savor the sensation of her pussy massaging your cock.