Our TG Caption

You quickly ask what size breasts you roommate would want to have. Sarcastically she replies:
“none as I don’t really want to be female.”
You feel guilty but she actually tells you a size she would want:
“you can try a D on me if you really want.”
Your surprised to hear this as you thought she would stick with none, looking at her expression she actually looks like she wants this.
“You have D-cup breasts”
You say out loud, and as soon as you finish saying it your roommates breasts start to expanding more. They don’t expand much but still it’s something. She looks satisfied with them and probably wouldn’t want them any bigger.