[Old Yeller]

And yet according to Catholicism, the marriage was never consummated, which means Joseph was also a virgin.

[lasereye]

Exactly. There’s no way to explain this implication so it’s ignored.

[Heart-Rest]

"And yet according to Catholicism, the marriage was never consummated, which means Joseph was also a virgin."

Well, either a virgin, or a widower.    (Source:     http://www.catholic.com/quickquestions/was-st-joseph-a-virgin-or-a-widower-with-children )