I heard the term “clit fucking” used once a long time ago. One of my sisters said her
husband inserted his penis into her urethra. He was not a small man. Many years
later, I asked her about it and she still insists he was inside her urethra. The
experience was not pleasant for her but she says they did it more than once.

Can that really be done? The other way around as described above seems more
realistic.