The insecurity guys feel when it comes to the length or shape of their penis, girls often feel when it comes to breasts.
Bear this in mind when your girlfriend undresses in your presence for the first time. Give her a compliment if you like her breasts.
Don’t they meet your expectations, keep your mouth shut. Don’t say anything negative: those words can never be undone.
Criticism undermines her self-assurance. The lower her self-esteem the less free she will feel when you make love. So being nice is not only good for her, but will make sex more fun for you as well.