Final answer:
The four predictors of pleasurable first coitus are psychological arousal, physical comfort, effective communication, and mutual trust and respect.
Step-by-step explanation:
The four predictors of pleasurable first coitus include:
Psychological arousal: A positive mindset, emotional connection, and feeling comfortable with one's partner can contribute to a pleasurable first experience.
Physical comfort: Being physically comfortable and relaxed during intercourse can enhance pleasure. Proper lubrication and gentle stimulation can help prevent discomfort or pain.
Effective communication: Open and honest communication with one's partner about desires, boundaries, and consent is essential for a pleasurable experience.
Mutual trust and respect: Trust and respect between partners create a safe and supportive environment, which can enhance pleasure during first coitus.