Drunk, Girls Night Out

My girlfriend (now ex) went with her sister to their cousins bachelorette party. It was a girl's night out and of course they went to a male review at a local strip club. When they got home they were both totally wasted so her sister stayed in our spare bedroom. My girlfriend wanted to stay up and drink some more so I agreed, When she passed out I carried her to the bedroom and decided to have a little fun. I noticed she had different panties on then when she left. Must have been some party! After playing with her a little while I was ready to fuck but she woke up and said she was feeling like she wanted to puke and to leave her alone and find something else to do. I went to check on her sister and found she was still passed out hard. Well, I found something else (someone else) to do. She never woke up and neither was the wiser.