Nephew has been today for tutoring. My brother dropped him off around 8:30, I had a robe over my clothes. After my brother was gone, I sat the nephew in my living room, gave him bunch of notes to read through, while I made tea for us, and waited till my son left the house.
Around 9, I joined the nephew in living room, we were finally alone, and I got rid of the robe - short skirt and tight white tshirt, no panties, no bra, only cute little socks and heeled slip on shoes, kinda like slippers. I sat on his right, other edge of the desk, turned to the side so he could see my crossed legs, and started questioning him about the notes, and which parts of it he had trouble with. I was excited, and my nipples were poking my shirt, but I kept it cool and professional until almost 11. I had to actually teach him something, but then I uncrossed and crossed my legs a couple times so he can accidentally see I had no panties. It included a few stretchings so he could notice my boobs, too.
I have to stress that my nephew is 18 before anyone asks me. That's all the details I'm giving about him, and all you need to know. He's about my height - I'm 177 cm tall, strawberry blonde, C cup breasts, and I keep on slender size by exercising 3-4 times a week, with stretching exercises every morning.
I kept it up till about noon, when I left him alone with more notes, so I can prepare lunch. Kitchen is very visible from living room, and I did a lot of bending low to get stuff out of cupboards. I returned to the living room every 10-15 minutes to check on him, and to get nice plates from one of the cabinets. That also included bending over. I think my skirt is short enough to ride to edge of my butt when I bend over, but not sure if it shows off my pussy. I have skirts that would turn everyone into gynecologists when I wear them, but it would be too much if I wore those at home.
Just after 1 pm I made him take a break from studying, and we had lunch. He had an errection the whole time we were eating.
After lunch, I made more tea, and continued tutoring. I sat next to him, and made sure my skirt was riding up on my thighs until my pussy was visible to him when he'd look down. My legs were slightly spread, not crossed at that point, since crossing and uncrossing achieved skirt riding up. He kept looking down, and looking again, and glancing, and his concentration on subject I was teaching him was non-existant. After a while, around 2pm, I asked him what is wrong, is he tired or what, that he is so distracted.
He was embarrassed and slightly red in face, and glanced down again. I followed his look, and "realized" what I was showing, and covered it quickly like I'm embarrassed, too. I apologized, said I was sorry, and he should've told me I was showing.
Then I asked if he was ok, and if I made him uncomfortable. He was red as a tomato in his face, but still tenting his pants. Problem with trainer pants is that, unlike jeans, they really tent. I asked him did he got hard because of me, to which he muttered out something that could be taken as yes. Boys are so cute when embarrassed.
Then, I asked him if same happened to him while we were on vacation and I was topless or nude on beach, to which he muttered out another yes. Did he masturbate thinking of me then, or was he just constantly horny and jerking off all the time to other reasons? His eyes were wide open, and how did I know? Yes, I know he jerked off all the time we were there, it wasn't very subtle locking himself 3-4 times a day in bathroom, and I saw him through his window from balcony a few times. He said he was ashamed, and wanted to die.
I had to explain to him that it's only normal for boys his age to be active that way, and nothing to be ashamed. I asked him again if I made him horny at the vacation, and he should tell me the truth. He said yes, but started making apologies and excuses that I was showing too much and he couldn't take it.
I told him he shouldn't be worried about jerking off to me, I don't mind he did it thinking about me, he wasn't the first. After all I'm a teacher at high school, I'm perfectly aware plenty of them have same fantasies about me, so why shouldn't he. Only unusual part in that was that I was his aunt, and that it's not even uncommon. I explained about studies we had to cover in psychology when I was still a student, and that it was fairly common theme with teen boys and girls to include family in their fantasies. I told him even I had a fantasy about a cousin. He was shocked to hear it, but he looked relieved. He asked few details to make sure I wasn't bullshitting, so I said it was about a cousin that lived in different town, but we spent summers together at the coast, and after I became sexually active, and through and after my pregnancy, I had fantasy about him coming to my room and doing it with me.
He looked at me wide eyed, and then he asked if I just masturbated to that, or did I do anything. That actually caught me by surprise, I didn't expect it. I told him that I didn't have anything with that cousin, but only because I didn't think he would do anything with me. If he seemed interested, I might have done it. His reaction was pretty much summed up as "wow", and I could see in his face and eyes that he thinks I'm cool for being so honest with him.