Different views of sexual relations for purpose of happiness--Padlocks to prevent exercise of sexual functions--Effect of falsehoods about sex relations--Innocent brides and goody-good husbands--Differences of opinion by brides and grooms lead to terrible wrongs on marriage night--False teaching often results in the "rape of the wedding night"--How definite knowledge prevents this shock to bride and makes for perfect bliss--The second kind of coitus reserved only for human beings can bring highest physical, mental, and spiritual well-being. THE ACT OF COITUS Coitus consists of four parts or acts--Where ninety-nine one-hundredths of all married troubles begin--Usually husband's fault due to ignorance or carelessness. First part of act of coitus--Difference between men and women in time needed for sexual readiness--Women usually slower--Prostatic flow and pre-coital secretion--Coitus harmful when either partner not fully ready for sexual union--Taking time most important feature--Special information for newlyweds--Woman's fear of "something new" and of pregnancy--Husband should not insist upon "rights"--Evils which follow this wrong attitude--True marriage based on mutual love--Key to married happiness--Married love needs continual care by husband and wife--Instructions for performing first part of act of coitus. Second part of act of coitus--Many positions possible--Best position--Instructions for performing second part of act of coitus. Third part of act of coitus--A common mistake made by many wives, especially young brides--Need for complete freedom on part of woman--Length of time required--Skill and intensity needed by husband and wife--Instructions for performing third part of act of coitus. Fourth and final part of act of coitus--When done correctly greatest of all human experiences--What happens to the man--What occurs in the woman--No connection with possibility of pregnancy--Designed by nature especially for woman's satisfaction and pleasure--Special instruction for husband and wife--Review of all the four parts of the act of coitus. THE FIRST UNION Special conditions which must be considered when bride is to have first sexual congress--Her state of mind--Need for better acquaintance--What both bride and groom should know about the woman's sex organs; where located, parts, how constructed, sensitivity--How shape and size of mouth indicate shape and size of woman's sex organs. The hymen or "maidenhead"--Meaning of its presence or absence--How it may be removed without danger or pain--First union should be accomplished by mutual desire and effort--Chances of conception in coitus--Desire for children.