This is an interesting subject to me. As a HDM, I can't imagine any way of initiating that wouldn't work for me. The key would be to convey the "WANT TO", rather than an attitude of duty. As long as there was some enthusiasm, I'd be ready.
But in my experience and with what I've read about other's, initiation for the LD HAS to be on more of an emotional level and can be instantly aborted by their mood, day's activities, or phase of the moon.
IOW, I guess I'm saying that HDs are easy. (Don't ever believe anyone that says I'm not deep! )
) 
