Two people are obviously attracted to each other, but some element of the story is keeping them apart. This tension is frequently referred to as UST in fandom, where it is pronounced "oost" or Yu-Ess-Tee. Also known as "Long Unresolved Sexual Tension". Belligerent Sexual Tension is a way to keep the UST by having the couple fight each other too much to actually get together. They Do is when it gets resolved (Literally Falling in Love might help). Shipping Bed Death and Strangled by the Red String are when it gets resolved badly. Examples of Unresolved Sexual Tension include: