Jerking for Dad

I was home from college and had showered and was in my room on my bed naked and jacking off.  I didn't hear my dad come in.  He walked by my room, and saw me.  When I realized he was there, I froze.  He said "Keep going I don't want to stop you."  I started up again, going at it more slowly, tugging at my cock and playing with my nipples.  I caressed my chest and fingered my asshole too.  When I couldn't hold off any longer, I shot a massive load all over myself.  "Nice job!"  he said.  He was wearing a tee shirt and jogging shorts and I could see the outline of his hardon.  I said "You look excited, Dad.  Can I see what you've got?"  "Only fair" he said and quickly stripped.  He came and stood over me.  He was obvioulsly quite turned on, started jerking furiously and shot a big load all over me, his cum mixing in mine.  He got a towel to clean us up and I was already hard again.  He asked me if I could again so soon and would I cum on him.  Being young, I was able to do that although it took me a few more minutes and I shot my load all over him.  He had got hard again was also jerking and our cum mixed all over him.  I licked it off of him.  We then got dressed.  We jerked off together a couple of other time that summer  but not since.