This is a hot topic and much needed thread discussion. Thank you! Answering from the feeder perspective:
Expatbhm:
At what weight did your fupa really begin to develop?
Similar to Jay's answer, the fupa started to grow around 400 pounds. There was already a healthy amount of belly hang and fat rolls, tipping the scales at that point. One more fat roll didn't look out of place.
At what weight did it cover your penis up when not erect? Erect?
I'm not sure at what weight exactly it covered. His belly hangs down so far anyway that it was another layer to lift and love.
How is your sex life, if you have a large fupa?
The fupa isn't in the way of a good time. Fat is squishy.
What does your partner have to do to achieve insertion or to give you a blow job?
Insertion works best if he is below, partner on top. There is so much fat padding that sometimes it takes a couple tries if he wants to be on top.
[quote]Can you orgasm by just thrusting into your fupa?
Not that I know of. That sounds like it would be messy. Haha. But interesting to know that it is a real thing for some of you.