I saw my younger brother's wife last night at a restaurant bar my husband and I go to. She was with a group of people I didn't recognize who all appeared pretty drunk. Before I could go over to say hello I noticed that she was paying a little too close attention to some guy in her group. I kept trying to see what she was doing although it was really crowded. It was obvious they were close friends and they looked like they had their hands all over each other. I saw the two of them leave together. About twenty minutes later I went out for a smoke and looked around. I saw two people in a car together. I casually walked by a few times and saw that whoever it was was making out. I watched for awhile and it sure looked to me like the girl was giving the guy a bj. I can't be sure but that's what it looked like. I snuck off when they finished and came back in and sure enough it was my sister-in-law and that guy. My husband thinks its none of my business. He says that I don't know what's going on in their life so I should keep my mouth shut and let them work it out on their own. I can't imagine a situation where what she's doing is ok though.