Or 2... Somehow we manage to have accumulated 5 by bikes between myself and my wife...
She has a cheap hard tail, good roadie and ok hybrid...
I've got a good hard tail and good roadie...
7 bikes between the 2 of us...
Me:
1999 Cannondale F700SL (hack bike, complete with pannier rack)
2000ish Kona Kiluea (bit more of a hooligan 26" wheel bike than the Cannondale as it's a smidge small for me - it started of as 1995 Kona Fire Mountain, so when I snapped that they gave me a frame the same size)
2010ish Specialized Roubaix Tarmac
2016 Scott Scale 29er
Wife:
2007ish Scott something, XS, but really good spec as the year after they put discs on and droppped the component spec
2011 Giant Trance 26" wheel
Some vintage of Avanti Road bike
Basically I know how I like my bikes to fit; wife is less sure so the Scott is actually a touch too small for her, but is a good little bike to throw around a bit more than a bigger bike is. She likes to sit "in" the bike, not "on" it - but this took time to work out, as it's something that only becomes apparent when you've done some riding.
I also kept getting promised a new bike, but it took a few years to end up with the new mountain bike!