A/B/O is derived from everything canine and basically for people that don’t want to admit they have a thing for bestiality lol.
knotting would be when a separate bulge swells at the base of the cock after ejaculating to make sure the seed stays in for awhile by making it impossible to pull out until the swelling has gone back.
you can often see it in the wrong order where people write the characters with their knots swelling and then coming, but… nope.
Cyberrat Writes 