Here again so bare with me.

My wife and I are happly married and monogamous for 15 years. She's my only sex partner but she has had others prior to our relationship. The idea of threesomes, both MFM and FMF have become a recurring discussion topic around a few of our gym friends who've made some not so subtle passes towards us.

We've agreed that threesomes are a definite fantasy we both share but Ive expressed my concerns of jealousy and somehow diminishing our bond by sleeping with other people. For me, sex has never been strictly physical, it's always been a way for me to connect deeper with my wife, a complete emotional and physical entanglement. I guess what concerns me is somehow altering our, or more specifically, my connection with her. By sharing it with others, will it somehow becomes less special.

Obviously, I know these are all risks and no one can say what will be. Odds are nothing will come of this and we're just back to fantasizing but, i'm curious to hear how those who've engaged in threesomes, while in a monogamous relationship, if you've experienced similar fears and what your outcome was? Do you feel less bonded or connected once you return to your monogamous relationship or your primary?