Boyfriend can't go! My fault?

It is not your fault. Guys get hiccups from time to time as far as blowing their loads is concerned. Sometimes it is performance anxiety. Other times it is physical exhaustion, chronic depression or chronic illness. Its a tricky thing to deal with. Next time you are in bed with your bf, reach down into his pants and touch his bare lower abdomin with your hand without saying a word. If his whole body jumps or his abdominal muscles tense up, it is nervous tension or anxiety. Next, get some body lotion and gently massage his lower abdomin, inner thighs, his pelvic floor (the area between his anus and his scrotal sac), and his buttock. These are the core machineries for his pelvic thrust. Allow plenty of time for him to get used to your touch. As you sense his muscles beginning to relax, warm your hands by rubbing them against each other. Then place one hand on his pelvic floor and another on his lower abdomin. You will feel the pulse on his pelvic floor as his penis starts to awake from its slumber. When the penis has reached its max, spread his legs and do it.