The filthy minds at Nerve.com have proven that sex really does go with everything in Where’s Dildo? And 99 Other Mind-Stimulating Puzzles ($15.95; Chronicle Books), a naughty activity book that’s almost as much fun to play by yourself as it is with a partner. Give this one a try: Place one of the nine given letters (D, I, H, E, T, O, P, R, A) into each square in the grid so that each row, column and three-by-three box (marked by the heavy lines) contains each letter exactly one time. When you’re done, one of the rows will spell out a nine-letter word having something to do with sex. (Solution on next page.)