Purrfect

Alex goes into Mandy's room. She's sitting at her computer watch videos. "Hey sis, just wanted to see if you wanted to hang for a bit tonight?"

Mandy jumps up. "Yes! I-I mean yeah, if you want to." Mandy tries to not look so happy. Then her face lights up. "I just borrowed Furry fight 7 from a friend at school. Do you wanna play?" Mandy rummages through her backpack.

"Oh I haven't played 7 yet, let's play" Alex sits down on the futon in front of her tv. Mandy starts up the game and hands Alex a controller. Alex and Mandy play a few games, and they're both evenly match. "Hey Mandy, how about we make some stakes. If you win, the other has one to do a dare chosen by the winner."

"D-dare?" Mandy asks nervously.

"Well who ever loses can say no. It's just supposed to be for fun." Alex reassures her.

"S-sure, but I'm not gonna lose." Mandy tries to act tough.

Their next match is super close, it comes down to the last hit, but Alex barely lands and anti-air and wins the match. Mandy looks over at Alex waiting for what she has to do. "I dare you to play the rest of the night in your underwear." Alex tells her.

"What?" Mandy is shocked, then embarrassed. But then she stands up and takes off her shirt and shorts, showing her cute pink panties and matching bra. Mandy has a nice C-cup chest. "Just you wait til I win" Mandy sits back down.

The next game is a blow out. Mandy gets early set ups and Alex guesses wrong each time. "Damn, you got me." Alex awaits his dare.

"Well, I shouldn't be the only one in there underwear, so you strip down too." Mandy refuses to meet Alex's eye.

Alex strips off his shirt, and takes off his pants. Leaving him in just his boxers. Mandy tries to hide her stares when he sits back down. "Alright, one to one." Alex picks his controller back up.

This game goes well for Alex. He takes two rounds straight. "I dare you to take off your underwear now."

Mandy's face goes red but since she thinks it normal, she takes them off. Alex takes a nice long look at Mandy's naked body. She looks perfect. Well almost perfect. "Stop staring, or you're gonna lose this round easy." Mandy tries to intimidate Alex.

This game also goes Alex's way. "My win again, and it looks like your out of clothes." Alex teases. "I dare you to kiss me for one minute."

"Another kiss?!" Mandy sounds kinda excited. Mandy leans in and closes her eyes. This kiss starts as just a small peck on the lips, but then Mandy puts her arms around Alex's neck and puts her tongue in his mouth. The two make out and then Alex pulls away.

"That's a minute." Alex sits back. Mandy looks disappointed. "Next game?"

Mandy destroys Alex this game. Her determination is strong. "Yes!" Mandy cheers. Then she looks down nervous. "So I want to-to um" Mandy stumbles over her words. "I dare you, you to let me..." The next words were whispered and Alex doesn't hear her. "I dare you to let me touch, your penis!" Mandy blurts it out.

"It's cock, penis makes you sound like a kid." Alex corrects her. But then he remove's his underpants. He's already hard from looking at Mandy's naked body. "Go ahead." Alex sits back.

Mandy sits next to Alex and slowly reaches her hand out. Once she makes contact with his cock, she just runs a finger over the head. It's not that she doesn't know anything about dicks, but what she does know is only from the hentai she's watch over the years. This is the first time she's touched a real one. She notices a clear liquid start to ooze out of the tip. She uses her finger tip you rub it over the head. It's slimy.

Alex just lays back and let's Mandy do what she wants. He just enjoys the thought of what's going on.

After about a minute. Mandy finally grabs his dick. She slow and gently rubs her hand up and down his shaft. She's now giving her brother a hand job, but also she is giving her crush a hand job. This thought gives her a rush she's never had. She starts to speed up. At this point, Alex's dick has enough precum that it lubes her hand and it slides easily.

Alex never thought this day would come, this is the first of many things he'll do with his sister. His sister will just be the first girl of many in his "harem". "Go a little faster, I'm gonna cum soon." Alex gives Mandy a little direction. As much as he enjoys this, he knows what happens if a handjob goes to long, and he doesn't want a raw dick.

Mandy speeds up again. Her focus is solely making Alex cum. She makes long strokes going all the way up and all the way back down. She can feel Alex start to tense up. Just then, without warning, Alex explodes. It flies upwards landing mostly on her hand, and some on her chest and legs. Then she stops, unsure what to do next. She just sits there with cum covering parts of her.

"Jeez Mandy, that was great." Alex sounds relieved. He hasn't came that hard since Becca gave him his first blowjob. He looks over and she's Mandy frozen just staring at her hand. "You can just wipe it off, let me get a towel." Alex gets up to retrieve a towel.

While Alex is getting up, Mandy's curiosity gets the better of her. She brings her hand forward and tastes cum for the first time. It tastes funny. It's not bad, but it's also not a pleasant taste.

"Here" Alex hands her a towel. He sees her hand near her mouth. "Did you taste it?" He asks. She just nods. "What do you think?"

"It's not horrible, but it isn't very good. The texture is weird too." Mandy analyzes.

"Well maybe you'll get used to it." Alex says. But in his head, he knows he could make her obsessed with cum if he wanted to.

Mandy wipes herself off with the towel and stands up. "I hope I wasn't terrible. That was the first time I've done that."

"Don't worry, it was great. I wouldn't mind if we did that more often." Alex jokes.

"Maybe we can play more games in the future." Mandy winks, playing along. "I should start homework though, I'll talk to you later." Mandy stands up and moves to her desk.

As Alex goes to leave, he almost forgets that he wanted to give Mandy another change. He turns around. It's time to see if he can make a physical change. "Mandy has a real cat tail." Alex watches her as she dresses in pjs. Then a blonde cat tail appears out of the back of her pants. Her pants even have a convenient hole on the back for it to go through. It wiggles back and forth. It's as if she's had a cat tail her whole life. Alex smile and leaves. His little cat girl is coming along.