cum strike
Cum strike -- noun. A concerted and deliberate action undertaken by a couple separated by distance in such a way that actual sex is impossible for a period of time during their separation, whereby each member of the couple voluntary and explicitly refrains from any self-induced orgasm in anticipation of an eventual (and hopefully, proximate!) face- to-face reunion.
Winston and Julia were separated by 750 miles and four state boundaries for several months, and anxiously anticipated their reunion. They anticipated it so much, in fact, that they agreed to a cum strike during the final two weeks before they would see each other.