M17, lying on my belly taking it. I don't know why I did it

I am 17, male, short, no body hair, I have long hair on my head and I'm skinny. When I get dressed out for gym class at school guys tease me that I have better looking legs than some of the girls. I get terribly embarrassed and they know it and keep it up all over the school. It's nothing for me to have my locker open, looking for books and notes and have someone grab my ass feeling and squeezing. Everyone laughs about it, even the girls. Girls that I'd like to ask out but I can't. They all see me as some guy that is picked on by the other boys and evidently "doesn't mind" that guys grab and squeeze my ass all the time. I've gone home after a gym class with finger size bruises on my ass cheeks.

I was at my neighbors down the street this weekend. He is Mr. Norris, 36m, divorced, very muscular, tall, I guess good looking though I don't really think of guys that way. I've known him a couple of years since he moved in and needed some help moving, cleaning out his garage etc. It was summer and he let me swim in his indoor/outdoor pool. With a privacy fence he'd just strip off and swim naked. I started doing it too. He noticed the bruises several times and was quite sympathetic about my plight. This weekend he asked about the bruises since he saw them again. He said he had some lotion for that and got me out of the pool. He dried off and he dried me off then took me to the living room. There he sat on the couch and had a bottle of some lotion. I laid me across his lap, his big cock still naked and I'm laying on top of it, my smaller cock on top of his. He started rubbing lotion on my bruises, well actually all over my butt cheeks. He rubbed all over there and it felt good. He asked if I liked it and I did, he mentioned that he could tell and put his hand underneath me to my hard cock. I was embarrassed and apologized and started to get up. "No, no, you don't need to move, it's natural, hell I'm gonna get hard myself probably" he said. I asked why and he said "Well, I have a nice young man and I'm rubbing his beautiful ass cheeks, I feel his cock hard, and . . . well, it just will happen". I kinda smiled at that, I don't know why. His rubbing moved to my lower back which felt really good, then my shoulders, I was relaxing and actually my cock was relaxing, but his was getting really hard. I'd never seen him hard, I knew his cock was over 6 inches long when soft and about an inch and a half thick. I knew he had a big one. He moved down the back of my thighs, rubbing the lotion all over me, rubbing it in making me feel so good and relaxed. Moving back up to my butt he put one finger into my hole. It just slid in, fully in one stroke. I tensed and he told me to relax as his other hand was rubbing me on the outside. Soon his finger was moving, in and out of me, softly and slowly. I started getting hard again. "You like that?" he asked. "I guess so, yeah" I answered. He pulled his finger out and started going between my cheeks down between my thighs rubbing my balls and I loved it. Then he paused with his finger about an inch in me again "Do you want me to do this again?" he asked. "OK" I told him and he was slowly finger fucking my ass. "Have you ever done anything with someone else like this, finger or anything else?" was his question. I told him no but wondered what else. He pulsed his cock up under us and said "Something like this?". "That would hurt a lot wouldn't it?" I asked him. "This doesn't hurt does it?" It didn't.

He gently moved out from under me and lain me down on my belly on the couch. He put a towel under me, "in case you cum" he said. Then he was lubing up his cock, my hole already lubed and waiting. I can't say it didn't hurt, it burned but he paused and gave me time to get used to it. When I told him it was ok he started moving his big, long, thick cock in and out of my virgin asshole. In and out steadily and I got used to. Out of nowhere I heard myself moaning. I was moaning as he was fucking me, I liked it. I wanted it, I wanted his cock in my ass. "Will you shoot in me?" I asked him. He asked if I wanted him to and I told him yes, I wanted all of him inside me. He speeded up, and soon my moans were replaced by gutteral grunts on his inward thrusts as he pushed 9 inches of thick cock into my boyhole. "Does it feel good?" I asked him between grunts. "Oh yeah, Oh yeah it does it feels so damn good" as he pushed in grunting himself. I actually felt the hot spurts of his semen shooting into my ass. He stopped and laid heavy on me with his big cock still inside me. I wanted to stay like this forever. He pulled out, I felt cold air hit the inside of my ass. It was a strange feeling I've never had before. He rubbed my buttcheeks till I closed up a bit then plopping his now soft cock between my cheeks he continued massaging my back and shoulders. Rolling me over he used the lotion, jacked my cock off then licked all the cum off my belly kissing my nipples in the process.

That was Saturday afternoon, from that time till sunday night late, I sucked his wonderful cock, tasting his cum and swallowing for him, he did the same for me, and I laid down for him to fuck me, begging for him to fuck me actually 5 times. I now know what I am, and on the way to the showers in school I swish my cute ass and legs all the time now.