i introduced my sugar gliders they go right up to each other and hold on each other and rub their heads in their chest, they also sniff each others butts a lot, the male makes this noise though like a soot hiss noise and then the female comes running over they hardly take notice of each other too so should i house them together tonight or is this to dangerous?

I think that they are ok. One of my males makes that his type noise also. As long as they are not fighting I think they would be ok. I would check on them every so often. Or if you are not sure and have 2 cages put them side by side as close as possible so that they can see and smell eachother. If you decide to put them on one cage have 2 pouches in the cage so that if one kicks the other out they have a place to sleep. I started with 2 then got a second pair and used the 2 cage method and then switched pouches around for a week or 2 so they get used to eachother and now they are in one cage and all in one big pouch.