Before he dropped me off I invited him to my house
Why did you invite him to your house?
We've been dating for quite a while and it's going on well. I want to have some "fun" with him
While it can be irresponsible to invite people you don't know well into your house, inviting someone in who you've dated for quite a while is reasonable. It is considered normal to have a person over to your house if you've been dating.
We had so much fun that night.
I am sure that you did. Make sure to only invite people you know well into your home in the future.