1. While fingering your loose pussied partner you realize, "Wow do I really have four fingers in there right now?" while using your thumb to rub on her clit.
2. Being bitten by a dog.
Dude guess what, my whore ex girlfriend was over the other day and she totally let me dog bite that shit.
Going down on a female partner both vaginally and anally at the same time. Some light nibbling is also common.
Man, I just dog bit the shit outta that hoe.
Look at that ass. I would totally dog bite that.