Blue ball nutting

When a male brings himself to the brink of orgasm while masturbating but then ruins it and doesn't cum. When done over several days (longer the better) it increases the intensity and how much he comes.

Suzy loved a good facial, but more so after her boy friend had been blue ball nutting for a week. Even better when he brought his mate around who also likes blue ball nutting for a really big messy double facial