For me it was being breed by two Rottweilerso. One right after the other. No knott involved but definitely heavy loads and the having their owner ( who I was sucking on his cock during this) slid out of my mouth and up in my ass to deposit his load. When he pulled out he put his cock back in my mouth and I sucked it clean. The taste was so awesome and mind blowing I didn't even notice that he put a plug up in my hole to hold all those juices in. The drive home was amazing and so surreal.
