we're all standing around last night at bob's birthday bash, when suddenly jeremy stands up.

"everyone! could i have your attention please!"
he then puts his arm around his girlfriend...
"well, as you all know, kate and i have been together for 4 months now..."
kate: "5 months, jeremy."
laughter all around.
"well, we've been together for 5 months and i have an announcement to make. we spent a month together in costa rica, and we've decided there was only one thing missing in our relationship...

...we joined the mile high club!"

absolutley classic.