http://aromantic.i2p/What-even-is-sex.html
I also would have to add that these erections are not solely triggered by potentially sexual interactions,
but there are also unusual postures, that could trigger something like that. As it happens mostly by accident and never with my permission, I do feel guilt for
having any sort of physical reaction, triggered by the person next to me and I would
undoubtedly not want the other person to know.