Dress up as Batman/Superman and rescue your gf (damsel
in distress).
haha That's what I do, only in my case, i've done her as Wonder
woman and me as some evil villain and I capture her.
THan once she wore some Spanish girl costume and I dressed up as an
El Toro Bandit heh.
Then there was also the time when we had a 4-some with some
friends, i was Chris Redfield, she was Jill Valentine, my buddy was
Nemesis, my buddies' gf was Rebecca Chambers, Resident Evil Cosplay
heh, that was the best!