Originally Posted by The Great Below
Not to mention his getting pregnant and not so much as a mention ever again.
For fans, I'd suggest watching season 6 with the commentaries on. I swear it's just as entertaining as the episodes (3 or 6 are my favorite seasons).
That's actually one of the things that gets dealt with in the series 3 opening episode with the Star Wars-style titles.
Apparently, he gave birth to two boys, Jim and Bexley, but because they were from a different dimension they grew really fast. They were the size of 18 year olds three days after birth. So Lister sent them back to their dad (the female Lister) in the other dimension so they could have a normal life, sort of.