Originally posted this on the Sex Fantasy Forum, did not spot there was a Bi Sexual forum. Although I'm not bi I have found this erotic. there is something enjoyable about blowing a load in a wife's hole as the husband is touching or sucking the man's balls. I first did this a long time ago with a hub who said he found it very degrading to feel the balls pulsating as another man's seed travels into his wife , he could feel it happen. I'm not bi but I do like it when I do this with couples. DM if anyone is interested in doing this.