It is extra hard in VV2 - because they 'parent' so extensively once they 'learn' that skill, the village count never goes 'down' to allow for 'selective' 'embracing' of specific villagers. BUT, in VV1 (and I hope it's true in VV2 also, 'cuz I want to try for more triplets), if you found a young (18-20 yr) girl and paired her with an 'older' gentleman (46-50-ish years), triplets were more frequent.

Doesn't happen as much in the new game because if you set their 'skill selection' to parenting, there's couples all over the island constantly 'embracing' and going in doors, so you never have a village count below the max long enough to selectively 'pair up' couples to try for trips.

I only have one set so far in VV2 and I've finished all the puzzles and most of the collections. Lots of babies, many twins (and I wish they'd bring back the twin counter in the stats) but only one set of trips.

I love this game!!