Stepbrother caught jerking off, let me do it

I was back home again... I thought I was finally alone and wanted to lie down comfortably on the couch and chill. When I walked into the living room, my stepbrother was lying there watching porn and waving his palm. I looked at the thing with interest, which then made me a little horny. So I spoke to him and offered him my "help" not entirely unselfishly. After we got each other going with oral activities, he finally got to fuck his stepsister. He had dreamed of this for a long time. The cumshot should then be a real highlight. I've rarely seen someone who could cum so hot.