The reusable Sticker Game Set.  Play as a couple or with a group.  Divide up stickers by selecting your identified gender.  (If a same sex couple, split the stickers for your gender.) 

 
Spread out room cards you want to play in and take turns laying the stickers to create interesting sets of sex positions.  After they are placed, carry them out.  Groups can play with or without clothes depending on how naughty they want to be.