No, I can't do with one... I spoil myself.

When I masturbate I'll leave it at one. For a minute, and then I'll do it again. This carries on until I don't want to anymore. Usually around 3, but if I'm exceptionally horny then more than that. Normally 3 and then I'll leave it for a few hours and start again later.

When I've been cybering or having phone sex I average on 4 - 5. 2 if it's a quicky though and there's not much time...

1 is definately not enough for me.