1、crush:If you have a crush on someone, you are in love with them but do not have a relationship with them.
2、The book opens with Helen, the protagonist, in hospital after a haemorrhoid/ shaving accident：
3、Which is a lesson we could all have stood to learn in our teens, and could probably do with remembering now。
could do with sth: to express a need or desire for sth.
1、upper crust:or upper-crust;upper class.noun and adj.
romp: have a romp, means"have sex in a light-hearted and very causal way"
2、underwear:Underwear is clothing such as vests and pants which you wear next to your skin under your other clothes.
so much as;
"especially when films seem to show women writhing with pleasure when a man so much as brushes against their underwear"
3、it made me realise that I wasn't alone in occasionally just wanting to be physically satisfied, above emotionally