Possession Steaminess Rating

Exactly how steamy is this story?

R

Byatt may be a fan of highly euphemistic language—you know, language that uses figurative terms or images in place of others that may be too sexy—but not even her euphemisms can lower the temperature of Possession's sexual content. When Roland and Maud finally get into bed, for example, we find out that E. L. James ain't got nothin' on A. S. Byatt.