An Evening of Drinks and Flirty Teasing

So it happened. It wasn't exactly how I imagined it would be but it was great. My wife and I had discussed a possibility of me sharing her with other men, which added a spark in our sex life. Every time we talked about it we would have the best sex. We had a few guidelines like no kissing and she had said they needed to be strangers, which she always felt strongly about.
I had two friends over and we were all drinking, my friend Steve and my other friend Larry and I. My wife had gotten off work and called me and told me she was extremely horny and needed to fuck as soon as she got home and then when I had told her about my friends being there she huffed and puffed but said she would just have to wait till they left but reassured me she was going to tease me constantly while they were there. This naturally got me horny so I said fine. She was dressed in a business suit when she came home to find us outside drinking. She came in and said hi and didn't even change just walked inside and grabbed a bottle of wine and a glass. She sat down and just started pouring glass after glass saying she needed to catch up. My wife was getting hammered as she had finished half the bottle when I told her she should at least go upstairs and change. She replied with "What? Don't I look good?" before I could answer Steve said "You look fuckin HOT!" She giggled and said "Thank you sweetie. You’re not looking to bad yourself.” and continued to take her jacket off just leaving her with a white shirt which was already half way unbuttoned showing a black bra underneath and her short tight black skirt that came about mid thigh. Steve's eyes almost popped out and she sat down and crossed her legs for her skirt to rise a bit. She noticed Steve and Larry both looking at her every move and continued to play with them by pulling her shirt open a bit or crossing her legs over and over. She was getting a kick out of it as was I. She played like that for awhile when she decided she needed to get up to go pee and she dropped her phone "accidentally" she turned her ass to face them and bent over to pick it up while her skirt was now just under her fabulous ass. She spread her legs a bit and as she bent over the skirt slid up slightly exposing her black lace panties. Both men looked like teenagers pointing and drooling. You can tell she loved the attention as she leaned over a bit more before she picked up her phone and walked inside. Steve and Larry both sat there next to each other not knowing what to say or do. I actually sat there quietly, taking it all in. She came back out and said that we needed some music and brought out a radio. She turned on the radio and she asked me to dance so I did. She looked at me and smiled then unbuttoned another button on her shirt, then gave me a kiss, turned to face the boys and bent over while she grind her firm ass against my crotch all while giving a nice show of her rack in a now ¾ unbuttoned blouse to the boys. I spun her around and she began riding my leg and I began caressing her beautiful ass slightly pulling her skirt higher and higher until it was half way up her ass. She looked back at them and said “I guess you don’t mind giving them a bit of a show, huh babe?” I looked at the guys and said “What do you expect? When you look this hot you need to show off a bit.” The song ended and I told her I had to use the bathroom and she whispered to me “I’m extremely horny! Don’t hurry back too soon” and with that I went inside. As I stepped into the kitchen I knew she was up to something so I stood and watched to see what was going to happen. She walked over to Steve and grabbed his hand and told him he needed to take my place, he was reluctant but she insisted. Steve pretty much stood there as she grinded her plump ass on him exactly the same way she was on me. She turned to face him and looked directly at me and gave me a wink as I watched. She continued by placing her hands