How we cite our quotes: (Chapter.Paragraph)
Quote #1
I was suddenly aware of him, of the overwhelming Eldricness of him, of his busy London blood pumping just inches away. (3.103)
Quickly contradicting her promise not to ever be interested in boys, Briony responds to Eldric's manly presence. When she mentions his pumping blood she is focusing on the way his physical body functions and not on her emotions or thoughts.
Quote #2
Was Eldric thinking of those witchy girl-parts too? Had he ever seen those bits of a girl before? Most girls would blush to think such thoughts, but when you've been as wicked as I, you don't have any blushes to spare. (5.47)
Again revealing her attraction to Eldric, this question leads Briony to think about sexual thoughts in relation to Eldric's past. Get your mind out of the gutter, Briony.
Quote #3
On Blackberry Night, the lads and lasses run barefoot through the swamp, pretending to try to catch the Devil; but it would appear the Devil catches them instead, for they consume quantities of beer and wine, and they shed their clothes, and there are always a number of surprise weddings come Advent. (16.78)
Blackberry Night is essentially a night where teenagers can explore their lustful feelings. The metaphor of chasing the Devil suggests that they are looking for an excuse to do something morally wrong—and later, when girls become pregnant, it's time for a shot gun wedding to please their judgmental friends and family.