What about having your folks round to yours? Then you have a bit more control of the situation.
To be honest it has never been a big deal for me, I have just brought them round for a drink or something, nothing formal like a sit down meal. Luckily I am now back with my ex from when I was younger, so I don't have to worry about any introductions!
As for Xmas, my brother has just started doing alternate years with his girlfriend (they have been together about 6 years, and only just started doing this when they bought a house together!), they were with his girlfriends family last year, so will be with us this year. No big deal....and this is coming from the parents who drove me 3 hours up to Inverness on Xmas eve night and back again on boxing day morning just so I would be with them for Xmas!
Your folks might be concerned since you have not long started seeing him, but your an adult....it's your choice where you spend Xmas at the end of the day. Alternatively, if it's such an issue with your folks, why dont you go to them this year and your OH's family next year?