There's an old couple (over 60) in my social circle. I first met them two weeks ago, and for the second time tonight. Ended up talking one on one with the woman for a while. She seemed extraordinarily interested in me, touched me a few times, and got really close to me (< 1 foot) toward the end of the conversation, before she had to leave with her husband.
I didn't find her attractive at all, but I got slightly hard while she was standing close. It was way awkward, because it probably showed through my pants, and she seemed to glance down at my pants right as it was happening. The whole time I was like "Are you fucking kidding me, penis? No way." Weird how someone can be attractive by behavior alone.