“We’re gonna make wonderful sex, and shag all night.” The great British public and the casts of Channel 4 shows Cucumber and Banana discuss the double-edged, hyper-sexual, hormonal awakening of teenagers, cuddling Keira Knightley, lusting after Michael Caine, shipping gay porn stars, and the adolescent crushes that never went away. Plus, losing your virginity in the disabled loos of your local park! Well, you’re only young once.