"Whoa sis. I didn't know anyone was still up." My little brother stood a few feet behind me wearing nothing but a towel around his waist. Unfortunately I hadn't bothered to put anything on before making a quick trip to the bathroom. I'd forgotten he was back from college. I didn't think twice about walking around naked when it was just my sister and me upstairs. I glanced back at my brother. He looked me up and down. "Damn, you, uhhh...look pretty freakin' hot. Uh, I mean if you weren't my big sister...."
For some reason, I wasn't totally annoyed with my little brother. I was still half asleep. Against my better judgment I didn't rush back to my room, I decided to mess with my brother's head a little bit. "Really? How many girls have you seen naked anyhow? I mean real girls, not on the computer or whatever."
"Uh, well, you know. Some. Really." He looked sad.
I knew my little brother hadn't had much luck with women. Of course, he was shy and didn't try very hard. Anyhow, while he was often annoying, he could be sweet too. I suddenly felt bad for teasing him. "Ok, sorry, I didn't mean that." Without thinking I turned to face him, exposing the rest of my totally nude body.
My brother's eyes lit up as he took in the rest of my naked form. My firm, shapely breasts, my shaved pussy, my toned legs. He looked hungry and clearly had not been satisfied this evening.
"Geez." I was back to being annoyed with my brother. "You don't have to gawk like that." I belatedly tried to cover my breasts and pussy with my hands and arms. Then I looked down and saw that his erect cock was clearly showing under his towel. I took a step forward and pointed at his cock putting my other hand over my mouth again fully revealing much of my athletic nude form. "Oh. My Gawd. You are such total perv. You ARE totally turned on seeing your sister naked." His cock appeared to grow a bit more and he fumbled to cover it, which only succeeded in loosening the towel, causing it to fall from his waist, exposing his backside. "Wow. Just wow." I looked at my brother's face, but he'd lowered his eyes.
"Uh, well. I don't...uh." His face turned bright red.
"Oh, you can't hide it. You want to fuck me." I took a step toward him. "You'd have sex with your own sister, wouldn't you? You'd stick your cock in me and shoot me full of your cum."
He raised his eyes a bit. "Well...I mean, you're naked and you're pretty damn hot. I mean...this is what girls do to guys. I can't control it. I can't help it if you're my sister too. Sorry. I don't mean to be a perv."
Now I felt a bit bad again. It wasn't fun to tease him if he didn't fight back. And I'd set him up to get excited. And I was unbelievably turned on at this point. "It's ok little brother. You can tell me I look hot anytime. I kind of like it. And you're not a perv." I couldn't suppress a little smile. "Well, not a TOTAL perv." Then I took another look at my brother. His body wasn't too bad really. And now we were standing a few feet apart, facing each other, both naked, except for the towel my brother desperately held against his erection. He looked down again.
"No. I mean it. I'm sorry. I shouldn't think of you this way. It isn't right. I'm sorry."
"It's ok. I mean. Feelings are feelings. Who's to say what is right and what is wrong. You've always been a good brother. It's ok."
"Thanks sis."
"Alright. Well, fair is fair. You've seen me totally nude. Now, let me see it."
"But...you said."
"Well I changed my mind. Drop the towel. NOW."
My brother moved his hands away and dropped the towel, standing completely nude in front of me. His cock now fully erect pointing upward at a 45 degree angle. I examined it closely. The pink head and brown shaft. Such smooth skin. His cock looked good. Really good. Ack. I didn't know what had come over me. Was I a bit turned on?
"Well, you definitely look ok naked. And you're obviously pretty uh... aroused."
My brother's face turned bright red. I wasn't sure what I wanted at this point. The situation felt pretty strange. It was two in the morning and my brother and I were both naked standing a few feet apart. I could almost reach out and touch his cock. Again, I made no move to turn and go back to my room.
"So, how far have you gone with a girl anyhow?"
"Uh, what do you mean?"
"Well, like, first base, second base, what?"
"Uh, well, I've kissed a girl before, a couple of times..."