A theme I often see in written smut is someone inserting an unwisely big dildo/penis up their chuff, and getting off from the pain. Is that an actual commonplace thing or just a fantasy trope (or just bad writing)? It only makes me think 'yeowch, oh nooo, no thanks, minge cringe'.
I have a retroverted uterus, which means my mutton tube is tilted funny and makes PIV painful in general. Maybe that affects my perception of this trope.