WOWWW, that was an insanely huge explosion. That was definitely a premature ejaculation too. Ordinarily, the girl would have freaked out and would have immediately stopped jerking him. She would have destroyed his orgasm. However, she didn't even flinch despite the huge mess he made all over. If she was fine with that, then recording her giving him a handjob was okay (An explosion like that only occurs when you have been rock solid hard for aleast 4 hours and you are extremely attracted to her).