Sister fun

So after the holidays my sister who lives in another state and who I haven't seen in awhile came to NY for a visit ,she is 2 years older but looks like my twin she is divorced about 5 years now , anyway we decided to take a,ride to Atlantic city during the week to spend the day and drive back which is about 2 and a,half hour ride , we went to the golden nugget which has nice restaurants and usually a live band playing , we played some slots and other games and had dinner in the chart house a nice,seafood place facing the boat docks, we ate and drank and noticed a,younger guy there maybe in his 30 's eating alone a few tables away , we were enjoying a after dinner drink and the waiter brought over more drinks and said from the gentleman to the twins, we laughed and looked toward him and raised our drinks thank you, a few min later he,left before we could invite him over. after that we went back on the game floor and played around and drank more , we kept getting comp drinks it wasn't to crowded for a week night I said to Doreen maybe,we should get a,room she agreed, around 10 pm we went to the bar with the band playing and ordered more drinks and stayed to at the back sitting on these,stool chairs at a table and It was still pretty loud after a bit the man from the restaurant came over he said his name,was Mark ,we thanked him for the drinks and said we are not twins but thanks again, we chatted for awhile and were pretty plastered ,we said we were gonna get a room and he said not to because he had a comp room but wasn't staying he had a condo 15 min away so he insisted on giving us his room we were like ok and he brought us to the room and it turned out to be a suite with a hot tub in the living room, so he said one more drinks k and he was leaving , now it was pouring rain out and we told him not to drive ,the room had a bedroom and a pull out bed , he agreed and we dat in the living room and opens a bottle of champagne, my sister was,slurring her speech and asked if the hot tub worked Mark said of course,and started filling it, Doreen said she had to try it and stripped down to het bra and panties ,she stumbled in and said come in guys, I don't think my sister knows of my sex escape or do I know of hers, anyway I stripped down to my bra and panties and Mark came in in his boxers, we relaxed for a,while still drinking, mark sat across from us and he was rubbing my leg and probably was doing the same to Doreen, so he mentioned about fantasizing about older women but I was wasted, he stood up to fill our glasses and I saw,he was rock hard, when he went to fill my glass I reached for his cock in his boxers not realizing my sister was next to me , I pulled it out ant took him in my mouth and suddenly my sister started licking his cock and took it in her mouth ,we both licked it up and down and licked the tip and kissed when we met there , I felt him about to cum and he shot on her face until I took it all in my mouth and then I licked the cum off her face while I did she slid my bra off and was feeling my boobs then she sucked on my nipples all the time not realizing this,wad my sister, Mark said lets go to the bed and we exited the tub and stripped off our wet underwear , we got on the bed and we knelt in front of each other kissing and touching each others boobs, Mark stroked and watched us , Doreen pushed me down and started going down on me and Mark wad sliding his cock in and out of my mouth, then Doreen turned me around and we were in a 69 ,I started licking and kissing her pussy, she was on top and Mark took turns sliding his cock in her from behind then in my mouth, we did this for awhile , he fucked both of us until we passed out for the night, when we woke up he wad gone he left a,note,saying he had a,work call in the morning and thank you , we were now both naked in bed and we just kissed and fell back to sleep Doreen was,behind me With her arm around me, in the late morning we showered and dressed and drove back to my place she said what a nice guy Mark was but she didn't remember much about the night I said the same and we left it at that , I didn't know much about my sisters sensuality but know a little more now, don't know when I will see her again but I am.looking forward to it.