Bookshelf Build with your Dick

Lucky for you, I have a great slave task for you today! I went ahead and bought the cutest bookshelf for Myself... but it has to be put together. I have gathered here the first few pieces of the bookshelf as well as a hammer, nails and tools that a normal person would use to put a bookshelf together. But you are not going to use a hammer, are you? Of course not! I do not want to get My nice hammer all scratched up! What do you think is hard enough to put together a bookshelf if you cannot use a hammer? Your dick, of course! As such, need to make sure you are nice and hard so your dick is able to hammer these nails into My bookshelf. Just look at the way I tease you... Oh, are going to have so much fun!