It might be good for you to rinse off too

You've been involved in a few other sexual marathons before, and you know when properly motivated, you can have a pretty quick turnaround, but after cumming back to back as quickly as you did, you also know going again right now is beyond even your capabilities and you'll need at least a little bit more time before you're ready. Despite that fact, your lust for Kelly remains and you think that maybe now is a good time to show off your own oral prowess.

Climbing to your feet, you head down the same hall you watched her disappear down, and make your way towards her bedroom. You find the door open, but when you glance inside, Kelly is nowhere to be seen. The sound of a shower running can be heard from the master bathroom, though, with light escaping from around the door that had been left ajar across her room, which makes you think she's probably already in the shower. Not one hundred percent sure that is the case, you give a quick knock on the door. With the lack of response, you slowly begin to open the door and peak inside and your loins begin to stir at the site in front of you.

Movies always make the act of showering look sexy as hell, but in real life it tends to be much less erotic. Kelly looks like she should be in a movie right now. The look of pleasure on her face is evident as she lets the water cascade down her body with her eyes closed, head tilted to the side and the way she's washing herself is as if she putting on a show for someone.

You almost feel a little guilty that you're interrupting her, but decide go through with it anyway. Assuming a casual stance, leaning on the wall next to you, you clear your throat to indicate your presence. She's startled at first, jumping at the noise that pulled her out of her trance, but her face quickly changes to her typical welcoming smile when she realizes it's you.

"You seemed to be enjoying your shower so much, I felt bad bothering you and almost turned around, but you look sooo sexy right now, I couldn't leave. Do you mind if I join you and rinse off too?" you asked with a roguish grin on your face.

"Mmmm, how can I say no to a compliment like that? C'mon in." she replied, stepping to the side to make room for you to join her.

You take a quick moment to let the water wash off the mix of sweat and sexual fluids that had coated your body already today, but waste little time with that task before turning your attention back to Kelly and dropping down onto your knees in front of her.

"Oh my God David, what are you doing?" she asked as you began planting kisses around her pubic region.

"What, you said you were going to rinse off, then I could have something to eat. Is this not what you meant?" you asked in return, playful innocence in your voice.

"Not exactly, but I'm not gonna stop you." she replied with a grin, leaning against the wall while propping a foot up on the small ledge surrounding the tub to give you easier access to her womanly parts.

"Mmmm, those pink, swollen lips of yours are already opened up for me. I can't wait to find out how you taste." you said to her before running your tongue along the length of her slit. A shiver ran through her body to your touch and goosebumps rose on her skin. Using broad strokes with your tongue, you began worshiping her pussy, taking her sweet nectar into your mouth while trying to pick up on clues of the things she likes.

Your efforts don't go unnoticed as Kelly's hips start gyrating and she grabs hold of the back of your shoulder, pulling your face closer to her dripping hole. "Oh David! Oh, yeah!" she moaned, squeezing her eyes shut and pushing her head back into the wall. "Fuck, you know what you're doing down there don't you? Just one more thing you're better at than Brandon... You like how that pussy tastes?" she asked, panting.

"You're delicious." you paused to reply truthfully. There was no bitterness to her taste, just a feint, tart, sweetness that you wanted even more of. "I could do this all day!" you said, looking up to meet her gaze and grinning at her.

"Well then get back to work and eat that sweet pussy for me!" she said, placing her hand on the back of your head and pushing your face back into her crotch. "Show me how a real man goes down on a woman."

At that prompting, you began doubling your efforts and altered your techniques between running your flattened tongue up and down the length of her slit, stiffening your tongue and plunging into her entrance, and rapidly flicking the tip of it over and around her clit while you buried your fingers inside her. This last technique seemed to achieve the most enthusiastic response and you found yourself returning to it often, eliciting cries of pleasure from Kelly each time you did. "Oh yeah David! Work my little clitty with your tongue! Finger fuck my pussy!"

After spending a good amount of time doing exactly that, Kelly started to become quiet, which you thought meant that she was ready for you to switch things up, but as you began to move off of this spot, you felt her grab the back of your head, preventing you from moving. "Don't stop!" she said in almost a whisper. "I'm close!... Oh god!"

Knowing enough to do as you're told, you did your best to keep directing your attention to her hard nub while curling your fingers up into her g-spot, but found it increasingly difficult as Kelly began writhing all over and grinding her pelvis into your face, trying to increase the pressure on her sensitive clit.

"Oh god, you're making my clitty feel so fucking good! I'm gonna cream all over your face! Don't stop David! Don't you DARE stop!... Oh my god! You're making me cum again! You're making me cuuummmm!" she cried out, arching her back and forcing your face into her pussy, her entire body tensing up another orgasm thundered through her body.

This orgasm seemed to be the strongest yet, and though you didn't want to end things prematurely on her, Kelly was starting to twist your neck in ways that it probably shouldn't go and you were having trouble breathing as she was apparently intent on smothering you with her pussy. Fortunately, as you started to contemplate tapping out, the waves of her orgasm began to slow and you felt her loosen her grip on your head, allowing you to get a, much needed, breath of air. A couple of moments later, she took her leg off the ledge, putting her foot back down on the floor of the tub and took her hands from your head, signaling that it was OK to finally pull away.

Backing away and slipping your fingers from her pussy, you used your hand to wipe away the juices she had smeared all over your face, then watched as her exhausted form slid down until she was sitting on the bathtub floor. Eyes closed and mouth gaping open, you watched as her chest rose and fell as she regained her breath, but what really drew your attention was her spread legs and the site of her glistening, gaping box between them and you felt the blood start to return to your cock. It wasn't fully engorged yet, maybe three-quarters, but you knew you'd be there shortly and would be back to fucking your sister-in-law soon.

As you finished that thought, Kelly's eyes began to flutter open and she saw you staring at her. "Holy shit David! That was intense!" she said to you, looking half in shock.

"I'm glad you liked it, Kelly, because I'm not done doing that to you yet." you told her standing up, then reaching down and offering your hand for assistance. "C'mon, let's get dried off and somewhere a little more comfortable." you said, reaching over to turn off the water.

"Fuck, my legs are so weak. I can't believe what you're doing to me. I'm literally having trouble walking right now!" she said as the two of you climbed out of the tub. She let you towel her off then lead her out to her bedroom where you guided her to her bed.