Help me we're so close

Flakey

Male
I've had this fantasy for so long, we've been together for 5 years and it's been 2-3 years that I've talked to her/introduced it to her. She's unaware that I want to be cucked but I've told her I would like a threesome or would love to see her going at it with another guy.

Recently I was able to convince her to dress sexy in casual days so she can gain confidence, but she isn't really really doing it, but she's not against it.

Recently, I've told her about a dream I had of her getting fucked and that it excited me.

We discussed and agreed to talk about it/roleplay during or before sex.

What can I do to fully convince her or continue to turn her into a hotwife slowly?