There are two kinds of sore throat from sex. The good one is more of a bruised soreness from a great throat work out. More like sore muscles. The other is more of a burning sore throat that could be a sign of an STD and then should be checked. My partner is quite big. If he's really hard and I deep throat to aggressively before I'm "worked in" I might be a bit sore the next day. (But in a good way!)