Wife leaving shear bra/panties out

[Carolinared]

My wife is a very fit (5’5” 118 pound) redhead older lady. Very conservative but she does know I enjoy other men looking at and flirting with her. She has been willing to be a bit of an exhibitionist when we go to a bar, going braless and with a couple of blouse buttons undone.
As far as I know she has never been with another man, we have dated since we were teenagers.
We have a single neighbor who is a lot younger than us who stops by for a beer often. We often sit outside and she has recently began unbuttoning her blouse a couple of buttons when he is here.
The three of us spent a day recently back road driving and hiking. She had a button blouse on over what turned out (after the blouse came off) to be a very shear pull over top with a shear bra under. When the sun light hit the blouse just right you could literally see her pink nipples. If you check out our profile you can see what we were seeing.
It is obvious she likes him, I am very secure in our relationship, the other afternoon we knew he was coming by I suggested she “accidentally” leave one of her shear bras on the counter in the bathroom. I mentioned it would turn me on. This is something she would have just laughed off before.
When he arrived we sat at the bar downstairs and after a couple of beers he excused hisself to use the bathroom. I could not wait to go up and see if she had left anything out. I really didn’t expect her to. There on the counter was a red and black very shear bra with matching panties.
I am thinking sometime this summer I may just get the MFM threesome I have wanted.
We have in the past discussed the possibility, she was always hesitant saying she would not be comfortable with a stranger or any of our married friends. She has said it would need to be someone she is familiar with and feels comfortable around. We’ll see what this summer brings.

[Windsorm]

Keep encouraging them both and let us know how it goes.