Short answer
Not necessarily. Marriage permits lawful intimacy, but it does not remove all Islamic restrictions. The location and nature of intercourse remain relevant to the ruling.
Islamic Guidance
What Islam teaches
The Qur'an provides guidance regarding marital intimacy, and Islamic jurisprudence distinguishes permissible sexual relations from prohibited acts.
Practical Guidance
What you can consider
Couples should learn the relevant Islamic principles and avoid practices that are clearly prohibited. A qualified scholar can clarify specific questions privately.
Sources
Qur'an 2:222-223; Sahih Muslim, Book of Marriage.