Thoughts on threesomes?

Opinions on threesomes. My husband is really pushing for a threesome. He always brings it up during sex. It obviously really turns him on, and I like the idea but I’m beyond nervous… I’ve been with this man for 14 years and no one else. In anyone’s experience, has this caused issues in their marriage later on if they do it? Does it become a thing he always wants?

I feel like this is something you shouldn’t do unless you fully trust and believe in your relationship. And there must be boundaries set between all parties before anything happens.

Honestly I have been in relationships where we invited ofter felmales in our bedroom but really I think that you should know what you want out of life relationships and sex first then know do it adds females and also men and how you feel about that but if the person you are with don’t love and appreciate you as his/her main partner it won’t never Works.