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 ?
The answer to the above question:


Howard does not feel romantic interest toward Vince .