Would you prefer guys to suck you off and leave when your done cumming? YES
Would you like your jerk buddy to ejaculate before you so you can have his sperm in your mouth to finish your own wank and cum you turn? YES
Would you make a cock cum with no reciprocation? YES
Would you like to be able to ejaculate twice in a row so you can masturbate with your own sperm the second time? YES