Slowly corrupting my wife into an incest kink.

My wife has become more and more enthralled with incest porn. Specifically ddlg but not specific to just a parent but any dominant man from her childhood which includes an uncle she lived with.

Her boundary was always no brother sister but after last nights videos, I told her she wanted her brother while she toyed her clit. She denied this but her body said otherwise as she started to react more and more to her toy making herself cum harder than ever before.