The Caveman's Big Club

Dave is a desperate scientist wanting to make a name for himself - and what better way to do that than to travel back in time? 

However, things get out of control and he finds himself stranded far, far back in time. He soon finds himself face to face with the most handsome, masculine man he has ever seen -- an ancient caveman is staring him up and down with more than a friendly greeting. 

Soon Dave finds himself doing the most exciting research of his life as he discovers just what type of mating rituals the cavemen used, and just how big their clubs really are...