Here we have the final result of the Arcane Hypnosis using sister.

A key phrase and response allowed him to remember everything yet still be affected by all the suggestions. This phrase was "do you take this man to be your lawfully wedded husband." and then her response of "yes" which instantly released all the old memories and what his sister had changed about him and why she'd changed him (not to mention his girlfriend)

Now it's a shame his sister had forgotten the bet there mother had made about the first one to give her grandchildren. 10,000 dollars later she can almost forgive what big sister did to hi-err- her.