At my brother's wedding last year, I was a groomsman. I was paired with a married bridesmaid named Kelly. She was super hot - tall and thin, round ass, perky B cups. We hit it off immediately and flirted all through the rehearsal and pre-wedding events. I investigated and found out her husband would be at the wedding, so I didn't expect it to go anywhere.
The bridesmaids' dresses were short and tight - perfect for Kelly's body. At the wedding dinner we had to dance together for one song. She was already a little drunk by that point in the evening. During the dance, rather than just hold my hand, she laced her fingers in mine, caressed my hand with her thumb, buried her face in my neck, and pressed her pelvis against me. I started to get hard, which was a problem because you can't hide that in a tux. I pulled back a little and she asked if I was shy. I told her, "Yes, when in front of 200 people and your husband was standing 20 feet away watching us."
She said she would consider herself a failure as a bridesmaid if she couldn't turn on her groomsman. The way she leaned in and whispered it, her lips brushing my ear, made my cock stiffen. I could either pitch a tent in front of 200 friends and family, or hide it by pressing myself against her. I chose the latter. That led her to start dancing even more suggestively.
After the dance, I did a quick shuffle towards the bar, trying to hide the erection. Her husband walked over - I was not sure what to expect. He could see I was uncomfortable, having just sexy slow danced with his wife right in front of him. He actually apologized to me, "She gets like that when she drinks."
We stood there and talked for a while. I had a flirty exchange with a hot little catering girl serving drinks. He and I both admired her ass as she walked away and he mentioned how much fun it would be. She gave us a glance over her shoulder as she went. He said he thought I might have a chance there.