My wife, 36, and I took a planned holiday to Las Vegas. Andrea and I had often fantasised about adding someone to our sex sessions but both had never taken it that step further. Often she would suck my cock and use the vib on her, always got her off acting slutty.One night after a day chilling out by the pool, we went back to our room and wound up spending the early evening engaging in a hot session of sex. I went and took a shower, Andrea was laying back on the bed, saw my cum drizzling out of her pussy when I got back. She slipped on a black skirt and a revealing white top and we went to the bar. She loves flirting and enjoys being slutty with my cum in her as she flirts. The wine went to her head, she soon was chatting to a guy in his fifties whose wife was sitting at the bar with him. They were from Kent in the UK (were Kiwis) nd also on holiday. His wife soon departed as they had not long landed and she was in need of some sleep. Plucking up the courage I asked him to join us for drinks in our room, he took it up and we all climbed into the elevator, I noticed his eyes were fixed on her pert boobs. Once in the room she sat between us on the couch, She leaned into me in her drunken haze and kissed me, I watched him look admiringly at her. I turned her towards him and she kissed him hard, he smiled and let her fondle his cock from outside his pants. I went over to the chair and watched her unzip him and suck his thick cock. She took it all down and I could tell he was enjoying it as it was he who moaned. It wasnt long and I saw some cum dribble out of her mouth, he had blown his load real quick. she turned to me and I was wanking hard out, she came over and planted her self on my cock and wriggled down my shaft. A few thrusts and she went off into such a deep orgasm. I came soon after as she was still quivering, the guy we had met was watching and stroking his cock. She got off me and sat back on the couch and lit a cigarette, (she smokes when drinking, or flirting) the guy was next to her and his cock was showing signs of arousal again. She looked at me as if to gain approval, I nodded and I watched her climb onto his cock and fuck him as she smoked, for some reason it aroused the hell out of me. Both came again and she slide of him, I could see his cum oozing from her. As she turned and licked his shaft I rubbed my semi erect cock on her slit, although semi hard it went into her wet dripping pussy with ease, I fucked her till I shot my load and we all collapsed back on the couch. He got up and left, we never saw him again, but we still get hot thinking of that night.