So you think you're so clever never in doubt

But I've seen you two together fooling about

Don't get me wrong now I've seen what you are

Mummy wouldn't like it - its gone too far

Got to - keep it in the family

Learn to - keep it in the family

Have to - keep it in the family

Want to - keep it in the family

Playing with each other its your favourite game

You never try to hide it there's no shame

You'll soon be discovered what will you do then

Family entertainment will come to an end

Got to