Wife constantly jokes about threesome with her friend

So me. 41 years old guy, kids, lovely wife.

I know people say that sex gets better with age.. but since hitting our 40s, our marriage has seen a bit of a revolution in the bedroom department. Toys, anal etc. its been great.

So we don't really do porn.. however we came across playboy tv's tripleplay, which we both watch start to finish. And without fail always end in us fucking. She's always wet and willing after seeing it.

She has commented on how much I seem to enjoy it and being a guy... I said its obviously a threesome fantasy of mine. She laughed and said it's not for her.. which is fine... however - she constantly asks which one of her friends would I like as a third wheel (they're all totally hot btw) we both laugh it off.

Knowing one of them has been in a relationship with another woman I said one time, she'd be a good choice. What kinda got me questioning my wife's intentions was the fact she tells me that her friend wants to borrow me, and laughs that "you'd like her to come home with me wouldn't you..?".

My question, am I reading this wrong or is it just banter? I wonder if I could push it.. help?

i was already looking up threesome toys on vibratoy.shop and i found some great choices on the women toys. I'm just waiting to confirm if my wife is banting before i order them.

Any advise would be appreciated.