How long have you been there?
From Create Your Own Story
You both kneel there startled before you meekly ask Adam "Gee, how long have you been there?"
Adam says slowly "Long enough, man. I saw what you were doing to my sister!"
Kara pulls what's left of her shirt around her tits to cover up from her brother, then says "You pervert! You were *watching* me?"
Nice how she was turning this around to Adam, you think.
Adam walks in a slowly sits down opposite you, clearly in shock. You find yourself feeling a little sorry for him, but you wouldn't have passed nailing Kara for anything. Adam sits there avoiding eye contact.
Kara speaks up "Ewww, you have a boner, Adam! You were getting turned on by your sister! And your best friend! What the hell?"
You're no pecker-checker, but you trust Kara's judgement about her brother having an erection right now.
Adam replies "Shut up, Kara! I shouldn't have had to see that!"
You try and break the tension, "Hey, Adam. Me and you are adults. We're men. Are you saying you wouldn't do it with a sexy bitch if you were ready to go and had the chance?"
Adam looks at you "Well, you didn't have to do my sister. In my house."
Kara says "Hey, it's MY house, too. I can do what I want with my body, without you're permission, Adam!"
Adam snaps back "What if mom walked in on you two?"
"She didn't, though. You did, Adam. And you got a boner over it! Oh my GOODNESS!"
You suppress a laugh over all this. Then say, "Ok, Adam. We did it. You know about it. Only thing we can do is move on and keep it to ourselves. Telling the whole world won't help anybody. Grab some pizza, dude. You're still my best friend, that hasn't changed. Not unless you want it to change?"
Adam sighs, puts his head in his hands then looks up. "No, you're still my best friend. And yea, I will finish this pizza. Looks like you guys were too busy to finish it all!"
Kara says "Well, that's all calmed down. Good!" She gets up, walks over to the table and takes some pizza and starts eating.
You can't stop looking at her wonderfully shaped ass as she moves. You can't promise you won't nail her again as soon as possible.
Adam says "I can't forget what I saw and heard, though guys."
Kara finishes chewing, then says "Ok. You know this little secret about me. How about we even it up by a little truth or dare game? You know my truth, so now I get to ask you something personal, and I have to hear it."
"That's dumb." Adam retorts.
"Hang on, dude, she has a point! It's just a little fun, and it's your turn to make us uncomfortable."
Kara giggles.
"Ok" Adam says.