A woman is at work when a large bunch of beautiful flowers arrive for her.
All her office friends are very impressed - but she looks very unhappy.
They ask " such a beautiful bunch of flowers - why do you look so unhappy?"
She says "well they're from my boyfriend, he's coming around for dinner & it means I'll have to spend all night on my back with my legs in the air"

They ask "Why, haven't you got a vase?"