Here are some suggestions to get you started, the more controversial the statements the more fun the game:
Never have I ever walked into a sex shop
Never have I ever read the entire Twilight Series
Never have I ever skinny dipped
Never have I ever kissed someone on the first date
Never have I ever been in handcuffs
Enjoy!
Other hens night games you might also enjoy:
Clink and Drink
Design a Toilet Paper Wedding Dress
Hens Night Purse Game
Post it note Game
Pin your Kiss on the Hottie
Weiner in the Hole