Both partners must remember that there is no right method or wrong method. One that suits best from comfort and pleasure point of view is best for that occasion.
The method opted must be accepted by the partner without showing signs of displeasure.
It is possible that couple may have sex in the same comfortable way always and still have sexually satisfactory relationship.
It is better to sacrifice your sexual preferences for better involvement of partner than forcing him or her unwillingly.
In case you do not wish to do certain sexual act or position because you feel it unnatural or awkward, communicate the same politely and compensate your partner in sexual acts which you both enjoy.
But, in any situation do not humiliate or demean your partner for refusal. And, never let your partner feel that you are taking revenge in life outside the bedroom.
Nothing in sexual life should be carried over to next time. One should never think of previous sexual failures as debt over the partner. Every experience is unique and should be kept as independent experience only for sexual fulfilment.
Couples, who learn to get best out of each other’s sexuality without making any fuss, enjoy long-term loving relationship.