Most Helpful Girl
Well, don't go full vacuum cleaner on her, you're not a loricariidae. Open your mouth sufficiently, but not too much as they do on movies sometimes, it's nice when it's a little tight. If you go for tongue, it should be just a little tingle, you're not trying to guess what the last thing she ate were, so don't stick it all the way down her stomach. And for gods sake don't drown her in saliva, it's gross.