This Dad Joke comes in an email with a little more context. Am I wrong to think these jokes are funnier because a Dad is sending them to his daughters? Oh well, at least I’m not 16 like when he first told me this joke…

Sometimes humor helps. Do you girls remember the joke about the man who picked up a nice looking girl in a classy bar. After a long evening of wining, dining and dancing the night away they ended up in a high class hotel room. The man disrobed quickly, being in an aroused state. The girl was kind of stalling. He asked what was wrong. She replied, well, I am shy because I had a mastectomy. He was a bit taken aback but rallied and encouraged her. She resumed disrobing for a couple of minutes, then stopped again. He said “what now”. She replied despondently.. I also have a prosthetic arm. The guy was really annoyed, but decided to follow through. So she unscrewed the arm and laid it by the bed. The guy reached for her again, and once again she stopped him.” well, I have to tell you one of my legs comes off”. The guy lost it completely and screamed at the girl ” WELL. GODDAMMIT, YOU KNOW WHAT I WANT, JUST UNSCREW THE SON-OF-A-BITCH  AND TOSS IT OVER HERE!” 
Laughter is the best medicine.
Lovedaddy