I can't offer you any insight on being a male feedee, but I can guarantee that there are female feeders out there. Hell, a lot of females seem to be feeders, even when they don't get any kind of sexual pleasure out of it!
I went to social BBW gathering a couple of weeks ago. A one point my wife and I had supper with another couple, that we knew slightly. She (Amy), had gotten WLS because she hated having a bug butt and hips. Now, she rather scrany, and her husband (Matt) is also thin. However, he's tall and usually about 180-190#. He noticed to his surprise that he was up above 210#, and dieted back down.
While we were having supper, Amy got Matt his (large)plate from the buffet, and then when he asked for a small cake, she brought him 2 saying they stuck together. I should also mention that Matt has a phobia : he feels he always has to eat everthing on his plate. Plus he is very hyper with a high metabolism, he even talks quite fast.
I magine what it would take to have a person with a high metabolism gain 20-30#
Might be that since Amy can't eat much she's enjoying having Matt eat for her?