Should I Let Him Think I'm Her?

He found me in the kitchen looking every inch like his sexy wife! I squeaked in her milfy voice, “Oh! I didn’t expect you home… um.. ‘honey’!”
She said he’d be gone on that business trip for a month! Now he thinks I’m her… mmmm…. Should I tell him? Oh… that would be the right thing to do… But it’s been fun being the MILF next door… so much better than being a boy! But… oh my… married? To a MAN? I’ve never even kissed a girl and now I’m a fuckable WIFE!
She said if I have sex as her we won’t be able to swap back… oh but he wants ME so badly… What should I do?
He bent me over the counter andlifted my skirt, finding I wasn't wearing panties. “Wrapped up early… but it looks like someone has been a naughty girl wearing her heels in the kitchen and making sweets for me! Let me make some frosting MY way!”
“Um… oh… my… are you sure?”
“Don’t be such a tease, dear! All sexy in that dress and heels, with your ‘fuck-me’ eyes… I know when my wife wants it!”
“Ohhhh… yes… I think I do… um… ‘dear.’ Mmmm… but…”
I think the decision is going to be made for me!