In Leeds, 18-year-old ladies man Ollie has been enjoying himself, mostly without protection, but will he listen to staff nurse Tim's advice and 'strap up' or will he come back from his holiday in Magaluf riddled with STIs? 20-year-old Heather has been suffering with genital warts. During a visit to the clinic, staff discover there may be more going on downstairs than previously thought. How will this affect her new relationship and will her boyfriend be in danger too?In Exeter, farmer Greg is suffering with pain down below and his new girlfriend won't sleep with him until staff have got to the bottom of it. The clinic team decide to take chlamydia testing to a young farmers foam party in an attempt to stop STIs spreading like muck.