I am friendly to ass play. With most partners activities were of the fingers and toys variety. The boy has parts I didn't have access to before.
Butt stuff time requires a bit more forethought and foreplay than PIV hanky panky. Trust and mutual respect is so damn important, cuz the chance of real injury and harm, emotional and physical, is very real. I've been blessed with awesome playmates and only have good experience to go by.
Hugs to the folks with trauma related to something meant to be/should be pleasurable.
Like, just the Porn Section here would put me even thinking of experimenting if that was all I had to go by. The hostility and disrespect is unsettling.