He had a vasectomy about 15 years ago, I don't know if that makes a difference. Sometimes it's okay, but sometimes it's so bad that I literally throw up a little bit into my mouth. Here's the thing, though: for the past maybe ten years, my husband's sperm has started tasting absolutely horrible-bitter and nasty-and my response now, nearly every time I give him head, is to gag when he comes. We are each other's best friends, and though the sex has dropped off a bit, it's still exciting and fun. I'm a woman in my mid-50s who has been in a happy hetero marriage for the past 25 years.