When I was 16 years old, my married next door neighbor (lets call him Mr Smith) hit on me for sex. He was in his late 50's and I was more than willing. I already been sucking my best friend off at age 14 so it was no big deal to me. We talked about everything and about jerking-off and sex. I started cutting his lawn and one day after I finished while his wife was away in another state he told me to go take a shower witch I found weird but did any way. I was in the shower, it was a big all tile shower with all glass. I looked over saw Mr smith was watching me naked. First thing I looked at was his big very veiny uncut cock. He had big hanging balls and his pubic hairs was trimmed tight. He looked at me open the glass door and said can I join you? I said not sure um I think it's ok and he stepped in closed the door. He grabbed the bar of soap and started to lather him self up. He then rubbed the bar on me and to my now hard on. He got behind me pulling me to him. He started to stroke my little 4 1/2 in hard cock. I felt his growing cock on my ass cheeks. As he was stroking my cock he whisper in my ear ever do this with another guy. I told his yes he ask what did I do. I told him I have sucked dick. He asked if I ever gotten fucked? I said no. He soaped up my hole and I felt his hard cock at my hole starting to push. I felt pain as he held me against the wall pushing his cock into me. I said it hurts stop but he wasn't going to he had to much lust in him. He said let it happen don't fight it I know it feels like you need to go to the bathroom but u don't so let it go. I did and he slide in balls deep. He started to slow fuck me, I lost my hard-on as he picked up and started to pound me. The room was filled with his moans and that slapping sound of flesh to flesh when he finely shot his load deep in me.