This does not sound like forced feminization. That term implies doing something against one's will with the purpose of humiliation. It sounds as if her actions are encouragement. If she were to tell you to don a French maid outfit and pump gas at your local Arco Station against your better judgement, I'd call that forced feminization. If she suggests going for an evening stroll along the shores of Puget Sound that sounds like encouragement.
My only suggestion for anyone is to never do anything outside your personal comfort zone.
Me? Being in a DADT marriage I would love it if my wife suggested I prepare dinner en femme. But, I choose not to force my cross dressing upon her. I hold to the premise both husband and wife need to be on board with the cross dressing experience for it to work.