Mix it up a bit.

I shrugged. "Drink some milk and some chocolate sauce and mix them together," I suggested. Terra gave me a thumbs up and grabbed the two items. Popping the lid of the milk, she chugged the entire gallon of milk down before grabbing the bottle of chocolate sauce and doing the same. Her stomach distended for a moment before it began be pumped up to her chest. I watched in amazment (and a growing boner) as her breasts went up to a high D-cup. Her black shirt with the orange T on it now showed quite a bit of underboobage. She took her shirt off and began to shake her tits.

"...what are you doing?" I asked, not complaining, just a little confused. Terra rolled her blue eyes. "I'm mixing them, obviously. I don't have a tiny mixer in me. You've got to do it by hand," she responded. Well, that made sense. She sighed, leaning against the fridge. "This feels really good. ...want to do it for me, Johnny?" Like she had to ask! As I shook her tits around for her with my hands, she kissed me and undid my pants. Pulling back from the kiss, she smiled coyly.

"You get to choose, John. Do you want to mix the chocolate milk this way, or do you want to fuck me so hard my tits bounce up and down, mixing it THAT way?" she asked. "Either way, I'll make you cum, don't worry about THAT. We can always finish what I started on the bus."