The author may suck at writing, may have a retarded vocabulary, may write characters about as deep as a wet sack, but she nailed the sexual tension. That's why women read it. Very few love stories tease in that way. Either the main couple sleep together fairly early, or the book ends with one soft kiss. The Twilight saga teases and taunts us until the fourth book, where they have sex. A lot. We dig it.
Don't forget the part where he beats the :bou::bou::bou::bou: out of her and a pillow during the sex.