Lips have tons of nerve endings that stimulate desire, which is why smooching before, during and after having sex is intensely arousing and satisfying.
The A-frame is the posture when you and your partner are in the act of smooching with your hips apart. The moment you close in this space, by pressing your hips together you instantaneously turn up the intimacy and desirability level.
Men, generally, have very sensitive ears. Suck on your guy's earlobe before tracing the outline of his ear with your tongue. Breath out in his ear and whisper what you plan to do with him to drive him wild with passion.
The reason men often go in for a deep kiss (like an open mouth kiss) is because they are transferring libido-boosting testosterone to their partner. So ladies, he's not only expressing his desire to have sex with you but wants you to be as aggressive as him.