There are loads of smutty board games out there for couples but Nookii, designed by two London women as 'a riposte to sex manuals that try to hang you upside down from the kitchen door' has fast been gaining popularity as the grown-up game for couples. The lavishly presented game comes with 90 cards, dice, a timer, a scarf (use your imagination) and an all-important 'Do Not Disturb' sign.