Should we do it?

The four of you need to have a naked dinner together and talk about it even more.

i showed wifes sisters husband a vidio of wife and me having sex

YES... Oh, God Yes!

It may take a bit of time of all you discussing about boundaries and mutual agreements (girl-on-girl, guy-on-guy, roughness, kinkiness, toys, and code words when a person wants to stop or is uncomfortable with what is happening), but a foursome is an AMAZING experience!

You might want to try a 'spouse swap' (perhaps in 2 separate-but adjoining-rooms at a hotel) first, because if you aren't comfortable with doing a swap, then you won't be comfortable with watching the other guy fuck your wife. A swap will give you and your wife an opportunity to experience sex with the other person, and then decide to either to continue the friendship (and go further to a 3some and 4some) or not. Plus, you will get to fuck your sister-in-law!

You have an great opportunity, just don't let it disrupt your marriage - your marriage is above any kinky experience - so you and your wife need that common focus always. GOOD LUCK!!!

My brother and uncle have seen my wife naked at all times and on occasion have fondled each other but as to date there has been no actual sex even though it has been very close. My wife and I have discussed it but are still thinking of it. Plus would either of their spouses approve of it or would they even tell their other half?... Any opinions ?

I think I should fuck your wife and her sister in front of you to see if you're good with this......what do you think ? Want to watch ?

It is not my norm. But if you want to fuck her sister band you don't care who your wife fucks go for it. But, what if she finds out she and your sister can get a better fucking from him? Were does that leave you? A wife that that will be fucking him and sis and not you!!

I think so but, I let men fuck my wife so I am all for it. We have a grate time

Swingers are gross.