By default, yes, they will be stored in the same page.
Someone can, however, override SQL's default behavior, table by table, via "EXEC sp_tableoption" and force SQL to store all LOBs outside of the row.
It's not likely that's been done, but it is possible.
SQL DBA,SQL Server MVP(07, 08, 09) Prosecutor James Blackburn, in closing argument in the Fatal Vision murders trial:
If in the future, you should cry a tear, cry one for them [the murder victims]. If in the future, you should say a prayer, say one for them. And if in the future, you should light a candle, light one for them.