Turns out,
The fat spider here was only pregnant. How I missed the mating scene and the delivery. She is back in her 'regular' size and her web-size has gone down drastically. There is only one 'baby' that I see around. It builds a web proportional to its size. and like kids, its very playful and random in the web-building style. Sometimes it jumps off into the nearby area and plays and comes back to continue building the web. :)
Contrary to popular 'belief', turns out most
living things are pleasure-oriented. I always used to think that without such a 'reward' and 'punishment' system, life wouldn't progress in any direction.