Yes, you join her

Eagerly, you follow Diane into the bathroom as she starts the water running in the shower. You come up behind her, reach around either side of her and cup her breasts in your hands while you push your chest against her back and nestle your cock between her ass cheeks. She lets out a soft moan as you massage her tits, your cock slowly stiffening against her flesh.

After a couple of minutes, Diane reluctantly pulls away from you and steps into the warm cascading water of the shower. She takes a few moments to enjoy the refreshing feeling of the water hitting her skin and running down her naked body before she turns to you and beckons you to come in. Eagerly, you join her. You try to wrap your arms around her and embrace her again, but she resists.

"Not so fast, big boy. Let's get clean before we start being dirty again," she says playfully and reaches for a bottle of Suzy's favorite body wash. She smiles playfully at you as she scrubs her skin with the body wash. Suds run down her tits, stomach, ass, and legs. Then, she starts scrubbing your chest, working her way across your shoulders, down to your stomach, and and then to your crotch. She diligently scrubs your cock and whispers into your ear, "This needs to be extra clean considering where it's just been."

Soon, the scrubbing turns to fondling. She presses her slippery, soapy body against yours and grinds against you while she kisses you eagerly. You return the kiss and press her body against the tile wall. Backing up just enough to let the shower's stream wash the suds off of your cock, you anchor your feet and bend your knees to angle the tip of your shaft against her slit. She stares into your eyes with anticipation and nods once.

You thrust into her. Her eyes grow wide and her mouth opens soundlessly. Then she squeezes her eyes closed and moans as her pussy envelopes your rod, hugging it tightly. You grab onto her hips and she wraps her arms around your shoulders as you fuck her steadily against the cool tile wall of the shower.

"Oh... Oh... Oh God... OH... FFFFFUCK!" she yells as her climax rapidly approaches. Her eyes fly open and her body quakes. She bites her lip, trying desperately not to let out an ear-splitting scream that would surely deafen both of you inside the shower. Her legs grow weak, and you have **** but to pull your cock out of her as she slips down to the shower floor.

Not missing a beat, she grabs your erection, slick with her own juices, and strokes you vigorously for a few seconds before slipping it into her mouth. Now it's your turn to moan as you feel her lips engulf your shaft and her tongue tease around the head of your cock. You look down and see her eyes staring back up at you while she eagerly sucks you off, one hand pumping along your shaft and the other feverishly rubbing her clit. The water continues to pound on your back and the constant white noise of the shower drums in your ears as your body begins to melt into the stroking rhythm Diane is using to bring you closer and closer to climax.

"Diane, I'm going to cum!" you say breathlessly as you feel your balls tighten, pushing you past the point of no return. You feel the impending thrumming at the base of your cock and then your nerves explode as if fireworks are shooting off throughout your body. Diane tries to catch it all in her mouth, but is caught off-guard by the forcefulness of your ejaculation when the first spurt hits the back of her throat. She backs off involuntarily and gets a facefull of hot jizz. The last few spurts hit her in the neck and run down her boobs.

She makes a face, swallows, and coughs a little before speaking. "Wow, I guess it's a good thing I'm already in the shower, huh?" You laugh and she giggles. You try to help her up, but you're feeling a little unsteady on your feet right now. She manages to stand and wipe most of the cum off of her face, neck, and boobs with her fingers. She looks at you slyly as she licks her fingers clean, making a show of savoring the taste before washing off the last traces of semen.

After toweling off, you both are feeling a little spent. You slip into bed, and Diana slips in beside you, taking Suzy's normal spot. You talk with her a bit about how great this evening has been before you both drift off to sleep.