I would like to have 2 possibly 3 motion sensors operating 1 fixture, is this possible without buying special sensors or logic?

Yes

HK's drawing is your circuit, can have as many motions as you want, all must be on same circuit, and Bulbs can't exceed the load of the smallest detector(300 watts/600 watts, )
You could actually have a Motion with floods mounted at each corner, and if any detect motion, all bulbs will lite. The red from each motion need to be connected together from each fixture and to each bulb socket.