The people who do it, im sure aren't gay. So I will say weird, or odd. Maybe its because we are too homophob and manly, or even affaid of size to do it. Whatever it is, im not into it.
Now that I said it wasn't gay, if I walked in on some guys doing it... I would think they are homo... it would take them awhile to take my doubt out... maybe 3somes with 2 chics and such