They are equally attractive but in different ways. They came from Victoria, BC Canada, as well as the other 2 group members. (Ben Nemtin and Dave Lingwood)
You may also know the brothers as:
Jonnie as Nigel Diamond (from the band Bikini)
Duncan as Boone McCaw (a country singer from Atlanta)
Person 2 "The Penn brothers"
Person 1 "But that's two people"
Person 2 "It's impossible to only choose one of them"