Yes

The Swift siblings climbed into the shower, which was big enough to comfortably accommodate both of them. They took some time washing themselves and each other, making light conversation as they lathered up and rinsed off each other's genitals. Pretty soon Austin was hard again, and he made to make use of it before Taylor stopped him.

"Hang on, stud." In a corner of the shower was a little ledge built into the wall that Taylor sat upon when she shaved her legs. Now, she sat and spread her legs open, showing off her gorgeous inner thighs and beautifully waxed pussy. "I got you off once already. Your turn to return the favor."

Grinning, Austin lowered himself to the shower floor on his knees in front of his waiting big sister. He didn't mind the request; in fact, he enjoyed eating out his female partners, loving the way they squirmed at the touch of his expert tongue. Cunnilingus also gave him the added bonus of his partners becoming especially aroused, meaning they were extra slick and eager when he finally thrust into them.

"Ohhh, yeah," Taylor moaned, leaning back and closing her eyes as she felt her brother's mouth against her sex. The warm water of the shower fell upon them like a gentle rain as she luxuriated in the oral pleasure she was receiving. "I never tell you this enough, but you are a fantastic cunt-licker."

Austin paused briefly to reply, smirking as he said "I had a good teacher." The two Swifts shared a laugh at that, knowing exactly who he meant.

"I've got something for you," Taylor said huskily, and Austin was suddenly met with a lightly salty, lightly bitter taste as liquid pooled into his mouth, filling up quickly. She was pissing into his mouth and Austin, being the dutiful sibling that he was (as well as being very familiar with his sister's kinks such as this one) swallowed without hesitation. The flow lasted long enough for him to swallow several mouthfuls before trickling to a halt.

"Much better," Taylor sighed. "Hope you enjoyed your morning drink." Austin said nothing but gave her a look. "What?"

Raising himself back up on his feet, he grasped his sister's face and pulled it close to his own. the siblings meeting in a hot kiss that was highlighted with Austin snowballing his last mouthful of piss back to Taylor. Taylor moaned in depraved delight at tasting her own urine and she swallowed down what he passed to her before kissing Austin back just as passionately.

Austin's cock looked and felt hard enough to break through the tiling, and he pulled Taylor to her feet and pressed her up against the shower walls, the two of them still making out heatedly as he tried to fumble his dick towards her waiting pussy. Thankfully she helped him out, and in a single, heavy push he was almost balls-deep into her. Immediately he started to fuck, his forceful strokes keeping her pinned to the wall, not that she minded in the slightest. Austin broke away from their kiss and instead attached himself to her neck, sucking intensely. That left Taylor free to voice her pleasure, and she did so exuberantly

"Aaaaahhh, Jeeeeesus," she let out, relishing the intense fuck she was getting. Her long legs hooked around his and her arms wrapped around his back, keeping Austin in place as he fucked her deep and hard, just the way she liked it. "Holy shit, that's so good. That's it, keep fucking me. Keep fucking me. Keep fucking me. Keep fucking meeaaahhhh...." Her words trailed off as she came hard, clutching at him as he pounded her pussy steadily, her inner walls clasping at it in response to her orgasm.

As she came down from her climax, she felt Austin becoming more rapid in his thrusts, signaling that he was going to cum as well. "Not in my pussy," she gasped into his ear. "Let me down....I wanna taste it, wanna swallow it all..."

Austin quickly (if reluctantly) pulled out from her pussy and stepped back. Taylor dropped herself back onto the shower ledge, now at the perfect height to suck her brother's raging erection. She wasted no time, leaning forward and capturing his length in her mouth before sucking with gusto. Though she could easily swallow him, she chose not to, wanting him to fill her mouth with his hot seed and taste every bit of it before it went down. Her sharp blue eyes fixated on him, watching his face as he strained to hold back from cumming as long as possible. Finally, he could no longer do so, and with a shout that was almost guttural his heavy load of sperm burst forth, painting her tongue and the insides of her mouth with fresh jizz that to Taylor was always the right combination of sweet and tangy, making it one of the best things in her life that she'd ever tasted.

Austin's cumshots quickly filled her mouth, yet she kept her lips sealed tightly around his shaft, not wanting to spill a drop. Thankfully it tapered off before it had a chance to overflow, and Taylor carefully pulled her mouth off her brother's deflating dick. Still looking up at him, she tilted her head back and opened up, showing off the creamy contents within. She even gargled it a little bit, making sure none of it leaked out from her lips. "Very beautiful, Teffy," Austin said, catching his breath. Taylor closed her lips, swallowed overtly, and then opened her mouth for him again, showing that it was all gone. "Now you have your morning drink, too," Austin remarked, getting a giggle from his big sister.

"Let's finish up before we start getting pruny," she said, and after a few more minutes to scrub themselves clean after their carnal activities, they climbed out of the shower to towel off.