Actually there was more

"Did you get all that?" Anna asks when Mara finally stops for a breath.

"I'm keeping it basic," Mara explains.

You sigh. "Uh, I didn't understand a word she said."

Anna laughs. "See. I told you you needed someone who know maths."

"Not sure it's going to help me if I can't understand it."

"Did you really not understand?" Mara seemed hurt.

"Sorry. I really didn't. I was pretty good at math in college, but you're an entirely different level."

Anna puts her hand on your thigh. "Is okay. We take care of maths. You need figure the programming interface. That all."

Just as you suspected, she was trying to take over the project. On the other hand, her hand was just inches from your dick... which seemed to be growing to meet it. Would it really be so bad to let her take charge, let her make the decisions, just become her sexual plaything?