Then in one fluid movement , Vince trailed his fingers along Howard 's stomach into the dark pubic hair , brushing his hand gently over Howard 's penis , and then cupped his balls , hard and tight , in his hand . Howard jumped up in surprise , and stuttered , " What are you doing ? Howard Moon 's not into this ... .no , sir ... " .

Question: Why might Howard have jumped when Vince touched him ?
Answer: Howard was excited that Vince touched him .Howard did n't expect to be fondled .Howard had been hoping that Vince was attracted to him .Howard was looking forward to the encounter with Vince .