Bonnie/Dean
No, he wasn't the guy that brought a guitar to a party. He just happened to know how to get one. Which as soon as he was done, he packed it back up and carried it to its owner. Maryanne got the payment of a kiss on the cheek and a decent hug before he returned to where he left his glass.
"How did I do?" He asked playfully. Dean hadn't seen the clone leave or come back, so he didn't know she had a plan already. Insead of taking his glass and filling it up again, he instead slowly took her glass from her fingers, and took a sip from it. All while keeping his eyes on hers. He wasn't a fan of vodka but this was for the affect not for the taste.
He returned the glass to her fingers, letting his own linger against them for just a moment. He was pulling out all the stops.