I hope this is in the right place, so here goes.

My wife and I are planning a trip to Europe, BRU Airport. I am a large guy (6' 300lb) and I'm trying to plan this trip so it will be a comfortable one for me and those around me. I have looked into Buisness Class seats, but wow, they are out of my budget. So I started looking into buying two coach seats for myself and one for my wife. Would this work? Would I and those other passengers around me be o.k. with this?

I was looking on priceline to book the 3 seats, but when i got to enter the passenger's names it would not let me book two seats for the same person. Does anyone know if this is possible? Will the Airlines allow me to do this?

Any and all advice welcome. ( I know, loose weight but that's not happening before my trip ).