"Let me play with your tits a little"

I say, trying to say it calmly and confidently, but I can feel my heart beating rapidly in my chest.

Millie looks me in the eyes, I can tell she is thinking about it and most likely also a bit surprised by my bluntness. She then looks around to make sure no one else is around, looks back at me and with a glimmer in her eyes says:

"Go ahead."

I instantly feel my dick go hard. Millie sits up a bit more straight, arching her back and pushing her shoulders back. This has the effect of pushing her big tits out towards me, and her nipples look like they are about to push through the fabric. I am for a moment frozen still, too horny from looking at those big tits I am about to fondle.

A few seconds pass like this. Millie looks around us, then whispers:

"Are you going to play with them or just stare at them?"

Slowly I reach my left hand out and put it on Millie's left breast, it is too big to fit in my hand. I look Millie in the eyes, she smiles a small smile and nods, my right hand reaches out and cups her right breast. For a while I am just holding her big tits in my hands, then I start very gently squeezing them.

My horniness must be showing through my facial expression, and Millie must be able to tell since she smiles a confident smile when she sees it. I am fully focused on looking at my hands on her big tits, I am squeezing them a bit more firmly now, and I push them together and think about how I would love to have my dick between them.

Millie's eyes dart around us, making sure no one is watching. I lean my head in and kiss one of her nipples through the cloth, then kiss it again, then gently tug on it with my lips. Millie puts one of her hands behind my head, holding it in place against her breast, she leans her head back and breathes out heavily. I use the hand I am squeezing her other breast with to start massaging her other nipple with. Millie's hand is stroking the back of my head.

"Ping!" I suddenly hear from the direction of the elevators.

Millie immediately adjusts in her seat and pushes my hands away from her big tits. I also sit up straight, and look over at in the direction of the elevators.