This is awesome. Dotty Atlantis, John having an Electra complex, his mother being kickass, Rodney's conviction that she wants John "that way", Rodney being terrified of meeting the family and yet turning right around to tear into her, John forgetting little things like that nudity doesn't work against his mother — brilliant!
Teeny tiny concrit: You can't operate two gates on one planet, can you? So I'll just imagine they had the Daedalus beam them around or they used a jumper instead. Hee.