how can I make it more interesting?

my bf and I can only have sex in my car (irrelevant as to why). we can do doggy and then my legs on my chest and him on top. I also get on top but can't really ride him so any tips for that? I feel like my legs aren't strong enough at all l. what else can we do to make it more interesting/ how can I surprise him? or any tips at all?

also, any ways I can make it so I don't queef? i know it's normal but still embarrassing.

thanksss:)