Straight

comme il faut

(direct, truthful, frank)

droit

(not crooked or bent)

hétéro

(heterosexual)

pur

(undiluted)

pure

(undiluted)

rectiligne

(not crooked or bent)

straight

(heterosexual)

directement

(directly; without pause, delay or detour)

tout droit

(in a forward direction)

ligne droite

(something that is not crooked or bent)

quinte

(five cards in sequence)

suite

(five cards in sequence)