Kinkiest thing my vanilla wife has ever done

My wife's friend and co-worker, Brookelynn, has been staying with us for a week now because she is getting a divorce. Brookelynn got my wife her current job so she felt that she needed to offer Brookelynn our guest room in the basement when she had nowhere else to go.

Brookelynn is a really cute brunette with a really nice ass and C cup tits. My wife, Lucy, is 36DD, but admitted Brookelyn has a hot ass when…

SOME BACKSTORY

Last spring, we went out for Brookelyn's birthday. Started as a group of 6 but Lucy and I were the last one's out with her and we were all pretty drunk. Brookelyn was waiting for a Lyft to pull up and she hugged my wife and they were joking about something earlier and Brookelyn said she didn't even get any birthday spankings. Lucy jokingly spanked her butt twice and then Brookelyn said to me "Your turn" and stuck her butt out at me. I saw a flash of her pink lacy panties when she pulled her short, black dress up for a second. I looked at my wife and she said "Spank her" so I did. Brookelyn and Lucy giggled and whispered to each other but nothing ever came from it.

TODAY

Brookelyn went to run errands this morning and my wife and I are off work. Lucy told her she was washing delicates today and asked if Brookelyn needed anything done. She said she would leave it on the floor.

Lucy called me down to the basement and I hear her voice coming from the guest room. I walk in and she's wearing Brookelyn's short black dress and her tits are busting out of it because she's a bigger cup size. It looked hot but hilariously slutty.

"Who wore it better?" my wife said giggling at my shocked face.

"Looks like you wear it better. You are a bad girl wearing her dress…"

"Guess you will have to spank me."

My wife turned around and hiked her dress up, flashing me Brookelyns pink panties.

"You are wearing her panties?"

My wife said she's being a bad girl and I spanked her ass a dozen times and felt her wet pussy though Brookelyns lacy, pink panties.

I pushed the panties to the side and shoved my rock hard cock inside her. She came a few minutes later and I started pounding her until I pulled out and came on her ass and the panties.

Lucy stripped the bed and said we gotta wash the sheets now too. She said "Don't worry… I won't ask if you thought about fucking Brookelyn…"

Didn't know what to say to that.