How does a stegosaurus dinosaur have sex and reproduce?
They don't. That's why they are extinct.
They use a stegoextention...
They tie each other down and get kinky.
Right after two martinis and a couple of smokes.
The 90 Year Old: Homeless, Unemployed, Virgin
They haven't done it for 200 million years
carefully, slowly and not for a very long long time
they managed no problem
Jake No Chat
Mount them, do the deed, and hope that it works. Not so tricky, they did it for millions of years.
they lie on their backs ,because their sexual organs would be very painful if they tried it from the top