Twosomes:
Alexis Oldbuck/Cunegundis Oakbottom (F/F)
Hildegarde Hogpen/Otto Underfoot (F/M)
Hagen Knotwise/Audoneus Goodsong (M/M)
Threesomes:
Theodelinda Leafwalker/Primrose Burrows/Llewella Hedgehopper (F/F/F)
Keena Knotwise/Birinus Goodbody/Devin Underlake (F/M/F)
Gerbert Took-Took/Fastrada Bramblethorn/Hincmar Heathertoes (M/F/M)
Belisarius Hornwood/Theobald Bolger/Bungo Longhole (M/M/M)
Trouble (alone, or in whatever combination):
Calamity Whitlock (F): I think that the generator takes liberties, but I love this name!
Flambard Goodchild (M): And anyone who has "good" in his name is bound to be bad. :P