"Your breasts look fantastic in that dress." From abysmal chat-up lines like this, to love at first sight in Victoria Train Station, BBC Radio Four listeners have some incredible relationship stories. Reaction Time broadcasts them to the nation, in a programme composed entirely of smartphone contributions from the public. BBC Radio Four shouted out for stories about love on social media - gave out the firstname.lastname@example.org email address and received poignant, funny and downright odd tales - which have been crafted into a half-hour of dreadful dates, poignant memories and one incredible relationship that begins with a heart attack. Contributors simply recorded their two minute stories on their phone recorders - and emailed the sound file in. The contributor Narelle Lancaster, was called back and asked to record the script over her phone - so it's 100% listeners in a programme made on phones - a new way of creating a programme, and a unique platform for the wit and inventiveness of the BBC Radio 4 audience. Presented by Narelle Lancaster Produced by Kevin Core.