Right

D.va throws her concerns out of her mind and decides to give it a go.

D.va places her left hand on the dial while placing her right hand on her hip, whereupon she finds a second dial.

"Wha? Another one? This is officially wierd. Well I did wanna see what it does so I guess I'll do that one after..."

D.va places her hand on the chest dial again and slowly turns it to her left. D.va waits a moment before feeling something.

"Ugh, why is it so warm today?"

D.va's attention is then directed toward her bosom. Her suit was skin-tight but even with that her breasts seemed a bit larger. As if they'd grown a cup. This caused her some discomfort as the suit was literally skin-tight to begin with.

"Wait a sec. Did my... are they... bigger?"

Young Hana was shocked at the sight. Her typically flat and slim figure now had two mounds about the size of Widowmaker's. She touched the dial again and ever so slowly move it till the small part reach the middle left of the dial.

This time she felt even warmer. Not hot, just warm, cozy. D.va had only felt this kind of heat when she was about to win a tourney, yet it felt unique from all those times. But sure enough Hana's "parts" began to grow. Swell was more like it. Her suit stretched to keep her covered. She backed up against a wall as her bust became heavier. Her breast were now comparable to Mei's! Quite a noticeable change in size. After the change D.va essentially collapsed onto a chair and felt her, for lack of a better term, "jugs."