Check it out.

"Do they look like they've maybe gotten bigger?" A voice asked someone to my left. I turned to see two topless girls standing near the end of the row of lockers.

"I don't know, let's see..." the other girl replied, then reached out and took hold of her friend's breasts, one in each hand. She weighed them, and gave each one a squeeze, and stroked the nipples with her thumbs.

The other girl said, "How about yours?" And reached out and took the other girl's breasts. As the two fondled each other unashamedly, and I continued masturbating, I returned my attention to Kathy.