Man has the godgiven gift of free agency. Therefore you may do anything you wish. You must know however, that when you do something that is contrary or against the law it is sin. The justice and judgement of sin will fall on nobody's head but your own. You cant trick yourself into thinking you can somehow escape by repenting later. Dont procrastinate the day of your repentence, nor die in your sins for the realization of your own guilt will be of the most bitter kind, a place set aside where there is weeping and wailing and gnashing of teeth. 43 And there shall ye remember your ways, and all your doings, wherein ye have been defiled; and ye shall lothe yourselves in your own sight for all your evils that ye have committed. Ezekial 20:43 14 Wherefore, we shall have a perfect knowledge of all our guilt, and our uncleanness, and our nakedness; and the righteous shall have a perfect knowledge of their enjoyment, and their righteousness, being clothed with purity, yea, even with the robe of righteousness. 2nd Nephi 9:14 25 And if they be evil they are consigned to an awful view of their own guilt and abominations, which doth cause them to shrink from the presence of the Lord into a state of misery and endless torment, from whence they can no more return; therefore they have drunk damnation to their own souls. Mosiah 3:25 43 The spirit and the body shall be reunited again in its perfect form; both limb and joint shall be restored to its proper frame, even as we now are at this time; and we shall be brought to stand before God, knowing even as we know now, and have a bright recollection of all our guilt. Alma 11:43