Check on her stats.

Sex: Female
General Body Type: Attractive
Sexual Orientation: Bisexual
Sexual Appeal: 10 out of 10
Sex Organ Size: N/A
Current Intimacy Partner: {firstname}
Satisfaction With Life: 8 out of 10

Having entered your girlfriend's name, you read over her stats. She seems to be fairly satisfied with her life. You are pleasantly surprised to see that she is in fact bisexual. You are a bit disappointed that you are her only sexual partner, but it does makes sense since you were monogamous before you changed yourself. Now you hope she will understand that you just can't help changing her. It is interesting that the program does not show a measurement for her clitoris. Although, you suspect that it is going to be measuring it soon enough.

That change will be a surprise for her for later. While fiddling with the deeper settings, you found a time setting that could be useful. It allows you to set a delay for a change to a person. You have decided to set it for a slow change to your girlfriend over a period of an hour or so. You look over her body on the screen. Her stats seem about right. You think perhaps the program is being generous with her measurements, but you aren't about to quibble over it. Looking at the more specific stats, you decide to start with something she is likely to completely overlook. Her breasts are a bit small for your tastes. You never really complained before, but now you can actually do something about it.

You make her breasts grow a size over the next hour from a small B-cup to a medium C-cup. You hope the change takes as the area of the program you are in is not exactly well documented.