(Skip mine if you don't like long posts).
I could never share my man with another woman (or man). I did have a threesome with a hot guy & my best friend when I was 18-- it was interesting, but it didn't knock my socks off and it was definitely not spiritual. If in another life I did have another threesome, I would want to try it both ways- another (would have to be beautiful) girl + me + my husband, or another guy + me + my husband (this sounds a lot more fun to me). It wouldn't be spiritual to me though because I am a soul-mate kind of person; I couldn't love more than 1. Also I just plain will not share my man. I am extremely monogamous, and I expect the same loyalty from my man. He is very loyal and here is why...
I have amazing, mind-boggling, out-of-this-world spiritual sex with my husband. First I'll give some background, then I'll try to explain the spiritual aspects.
Background: We have been married for 9 years. Last year we went from what is probably normal and common for people with 2 young children-- mediocre sex 1-2x per week, with me not enjoying it, having no libido & being tired ALL the time-- to where we are now, which is making love every single day-- sometimes morning & evening, with me loving it and wanting it all the time. Plus I now have earth shattering O's. And lots of toys. Also, now I get dressed in the full lingerie get-up several times a week, with my awesome black skintight kinky thigh high rubber (5 inch) stiletto boots. Oh yeah also my husband has gone from receiving 1 BJ every 6 months to getting 3-5 per week.
I've most likely kept your attention up to now, but probably not for much longer.
I'll try to explain the spiritual side of things. Some will be uninterested in this, but I am a Christian, and according to my faith "the marriage bed is undefiled". Well this means we can do just about anything that does not involve bringing another person into the mix (this includes porn). So... that's what we do... anything and everything either of us want. There is nothing we won't do for each other.
Our experience of the marriage bed being undefiled is like this... both hubby & I agree that the world is disgusting and awful (well the bad things in the world are anyway); MOST people are shallow & some are malicious; our culture is totally performance driven. Etc etc... basically, the world is "defiled" and it completely breaks us down and destroys our spirit on a daily basis. Making love to my man every day is the only way to escape it all. It is the only place on earth we can go and without fail bask in pure peace and love, without limits. The feelings we get from expressing our love freely are a lot like being on the best roller coaster ever.
I think it's spiritual because I am usually high at night, and my mind tends to wander (I also think people are more open to spiritual things when high). Well I have noticed that if my mind does wander while we are messing around, I can get the super high pure love experience back by meditating on 1 of 2 thoughts: If I think either "I love God" or "I love D----" (my husband), that is all it takes for my worries to completely disappear and for the love roller coaster to return. The more I meditate on that love (either God's love, or my husband's or both), the more likely I will be driven completely out of my mind with pleasure (I'm talking to another universe).
I could explain it better, but my posts are long enough as it is.
Another benefit from having all this sex is that all the natural adrenaline and endorphins help me manage my fibromyalgia (chronic pain condition). All day long, my brain's pain signals are severely amplified, and if I overload on good feelings as much as possible, it counteracts some of the pain.
So anyway, there's my experience of spiritual sex, and my experience of a threesome. I wouldn't go back to the way things were before for a million dollars. Girls, find your inner vixen and get to know her well. Guys, give your woman the kind of love she needs.
. My lovely wife and the female half of our partner couple... mmmmmmm