A few years ago I was in my bed just reading when I heard my mum answer the door, knowing it was just my brother she answered it. After a few minutes of talking heard him come upstairs and into his own room.
Twenty minutes passed and I heard his door open and I realised he was heading for my room so closed my eyes pretending to be asleep. My door opened.
'Mark' He whispered.
'Mark' A little louder so I decided to answer him to save us both getting my mum out of bed.
He walked in and switched on the light. He was stood there dressed in his boxers
'I think I've done my back in'. He told me. 'Would you massage it for me?'
My initial reaction was not to but he looked really vulnerable standing there so I said okay and for him to get on my bed face down. He did and I could see he was in pain. I straddled him and gingerly I started rubbing his shoulderblades and the nape of his neck. He asked me to go lower so I did rubbing just above his hips.
I looked at him and I realised I had a raging hard on by thus time. I hooked my fingers in the waistband of his boxers and pulled them off revealing his tight 13 year old ass. I softly massaged his bubble butt and he moaned as I did so. After a few minutes he raised his butt off the bed and I knew what he wanted. I reached under him and for the first time in my life I was holding a dick that wasn't mine. He turned over and saw my hard on in my boxers. He reached out and took it in his hands. I gasped and began jerking him off. I was surprised at his size for his age my fist only just being able to close around it. He quickly reached the peak and stopped jerking me. His eyes rolled up and his face was a mask of pure pleasure. He raised his butt off the bed and using my free hand I slipped my finger into his ass, feeling him contract and gripping it tightly.
'Oh I'm cumming. Please don't stop.'. He managed and he moaned loud and long before shooting three huge ropes over my hand and balls.
He relaxed and I removed my finger from his ass.
I was about to get myself off when he put his hands on my thighs and then he cupped my balls, a real turn on for me. I was so turned on I actually came without him touching my cock.
Needless to say we made a regular habit of this.