Thanks for the tips, I was already using both hands as I'm playing on my phone (I play games like this mostly for the experience and not for the scenes), and I always milked her when she was full... so I guess I just need to be faster.
This game was amazing, I can just say that. I'm a bit disappointed that I got 1h and 14m. Perchance would you be willing to give some tips so I can do it again faster? (Also, sorry if I made any english mistake, Im brazilian...)