Girl on the left: Oh my GAWD! You're eating it? That's so perverted!"

Also, is it just me or do her breasts come forward a lot more than they look like they should for their overall volume? Like somebody's pulling on them. Maybe it's the gravitational forces of the cake. I dunno.

antigravity cake

dragnfly: Yeah her left tit is eagerly (and obviously) desiring cake.

She is wearing a top while the other girl isn't it could be providing some kinda support. But it's probably the cake.