Hi Jadebrown,
You could add another line to your contract so that you each have a SIM and allowance to use, that'd be £15 per month each with 3Gb of usage each.
As Hockeyshooter rightly says, we don't provide mutil SIM options for broadband at the moment so you couldn't both share the same allowance of data I'm afraid
Have you thought about
Top up and Go broadband access for one of you? £15 per Gb you use, with the added advantage of no contract period
Paul
eForum Team