As someone who doesn't do the SB thing, this thread's interesting.

A bit irrelevant but it reminds me of when I was a virgin and a mate was telling me the hairline difference between punting and picking up at a bar: you're still paying around the same money at the end of the day for the same result. Assuming it's sex you want, the main difference is the effort you put in.

For you SDs, do you put much effort into communicating with your SBs between meetups? The thought is tiring to me.