Most guys I get blowjobs love that, love me to take their hot nut and then spit it in their mouths and kiss them, such a turn-on to clean every little bit up and then share it
this was pure, motivated artistry... how he went after every last warm, salty, sweet, sticky drop ... on his hand, wrist, etc.... none wasted, which is the only acceptable way... and then to share his reward in his kiss. If your lover isn't doing the same, you're with the wrong guy.