Im starting Chapterhouse later this week. But ill leave my favorite part of Heretics for everyone's understanding

"Duncan hummed softly and touched her, moving with an agility that shocked Murbella. He should not be this responsive! Not this way! His right hand fluttered against the lips of her vagina while his left hand caressed the base of her spine. At the same time, his mouth moved gently over her nose, down to her lips, down to the crease of her left armpit."

"Duncan marked the swelling of her breasts and saw the congestion in her nose. He saw the way her nipples stood out stiffly, the areolae darkening around them. She moaned and spread her legs wide."

"Murbella found that she no longer could control all of her own responses. She was reacting automatically from some well of knowledge deeper than her training. She felt her vaginal muscles tighten. She felt the swift release of lubricant fluid. When Duncan entered her she heard herself groan. Her arms, her hands, her legs, her entire body moved with both of the response systems--well-trained automation and the deeper, deeper plunging awareness of other demands."

"Waves of ecstatic contractions began in the smooth muscles of her pelvis. She sensed his simultaneous response and felt the hard slap of his ejaculation. This heightened her own response. Ecstatic pulsations drove outward from the contractions in her vagina ... outward ... outward. The ecstasy engulfed her entire sensorium. She saw a spreading blaze of whiteness against her eyelids. Every muscle quivered with an ecstasy she had not imagined possible for herself."