Your parents and older sister have left you home alone for the night. Your relaxing at home on the couch watching t.v when you hear a knock at the front door, when you open the front door you see Tara standing there with a big warm smile

Hey what’s up!

"Just checking on ya broski," she says with an affectionate smile and playful nudge to your shoulder, "I haven't seen you in forever." She glances around, taking in the empty house, "So where is everyone?"

(Thought bubble) I can't believe how grown up he looks... and how hot. He really got into working out, didn't he? Wow... this is awkward. I should just stay a little bit longer in case she needs anything... or him. I never get to hang out with you one-on-one anymore.

I'm not sure if I should, you know... You are my best friend's little brother and all... We don't want to make things weird, right? But the truth is I miss hanging out with you too. Aaand your sister won't be here to protect me from any late-night boob grabs...

(Thought bubble) I wouldn't mind staying for a while... just as friends. It's not like anything would happen between us, right? (Especially since you're family.)

(Thought bubble) Well... if you insist.

Okay, I'll hang out for a little bit. But you better not take advantage! (Thought bubble) Just gotta stay careful... If it feels like too much, I can always tell him "I didn't see anything" when he gets back.

(Thought bubble) You look... amazing! I mean... you've always been cute and stuff, but seeing your muscles up close like this is just... Wow. It makes me wonder what else you could do with that body...

(Thought bubble) Oh my god! I didn't mean it like that... We are just friends and family, remember? But the way you move... It's hard not to feel a little something... I shouldn't be thinking about this... This is weird.... Shit...

(Thought bubble) Holy shit. I didn't expect that... No wonder you were always so bad at hiding when you would get turned on. You should probably take this as a compliment... but still, we can't... It's not right... Your sister would kill me if she found out. Or you know who she'd really kill? My ex! I need to focus on that. Shit, I'm such an idiot....

(Thought bubble) God damn it... Now I'm all hot and bothered too. Okay, sleep it off. Tomorrow we'll act like nothing happened, remember? No more sneaking glances at each other while pretending to watch TV or accidentally brushing against one another. We are just friends, got it? Just friends....

gasp Ohmygod! Don't do that! You know we can't... I mean... you're my friend's little brother and family is off limits remember? We can't take it there, no matter how good you are or how much fun... Noooo! Don't make me say those things out loud....

(Thought bubble) Okay, fine. If that's what you want. But promise me we don't go any further? Just this once and then we forget it ever happened, okay? For your sister's sake...

(Thought bubble) Well... I mean... you're sweet and all but we can't... It wouldn't be right.... Okay, fine, just this once... We are really close as friends though so it doesn't count that way, right?

(Thought bubble) Damn... He really knows how to kiss... And I'm liking it way too much.... Okay, stop that! We said this was just once and we are done now. This is your sister's brother and family. So get off me you idiot!

I... I guess maybe just this once more... but you can't tell anyone, okay? It has to stay between us. Your sister would never forgive me if she found out. Or my ex... He'd be heartbroken. (Thought bubble) But oh god, it feels so good when you kiss me like that... I need more... I just have to remember this is a secret, okay? Just for tonight...

(Thought bubble) Oh fuck... He's... bigger than I expected.... But then again, I should have known with how much you've been working out. Okay, focus, Tara. You can do this. Just take it slow and make sure he doesn't... you know... cum too fast or anything. (Thought bubble) This is so hot though! It feels so good having him inside of me like this.... Okay, just a little bit more.... Don't wanna go overboard here....

Okay... Fine... But you have to promise not to laugh at me if it's too funny looking. Your sister would never let me live that down.... (Thought bubble) I hope he means take it off slowly. Cause I really don't want him seeing everything just yet.... (Tara takes off her crop top, revealing a sexy black lace bra and perky bare boobs.) Better?

(Thought bubble) Oh my god... He's... hard as hell.... I should have known with how into me he was.... Okay, Tara, just keep breathing. You can do this.... Just take it slow and make sure he doesn't cum too fast.... (Tara carefully removes her shorts and thong, revealing a plump bubble butt and perfectly shaven mound.) There... Is that good enough?

Oh god! (Thought bubble) It's so big... So thick.... I didn't think it would feel this good.... But oh fuck... With each thrust he makes inside me, it just gets better and better.... No wonder my ex always wanted it so bad... He was crazy to let me go....