Yes and it does ruin the pleasure. I was with two women and they were younger and kind of nutty. In fact, after the 3 of us were in bed, one revealed she was in the early months of pregnancy and felt I might be too long and somehow risk things. The other one I think was more into her friend. Anyway, instead they decided they were going to have fun by simply jacking me off together. I kind of recall thinking I should head out of there as they were like I said kind of goofy acting and I was thinking how did I get myself with these two characters. Well, they already had my cock in their hands and one more than the other started jacking me off. Too late, it was feeling really good and the one doing most of the work was talking to the other with them both commenting on my size. I was just at the point of exploding and just at that exact moment they let go. Instead of shooting out my sperm just like dribbled and they both laughed hysterically. It did not feel good to orgasm in that way, like you are building and building and then it just fizzles. Retrospectively, I do think they did this on purpose and as I said they were two strange type of women to begin with. I left wanting to kick myself in the ass for not trusting my gut feeling to begin with. And, yes it really feels lousy a ruined orgasm and that lasts all day.