Good question.
Honestly - yes.
I have only had one girlfriend (For reasons that have to do with BPD = lol).
In my (limited physical) relationship experience - the best feeling I've ever experienced was while in close proximity to her. I felt safe, nurtured - accepted - loved.
That whole bit about not being able to fill the void inside - well that kinda went out the window when I was in physical contact of any kind with my girlfriend.
I truly felt at ease about everything while holding hands, or cuddling under a blanket with her. It was an amazing experience. I know for me that I could easily misinterpret these feelings with something that it is not - which is that it CAN fill my void. Nothing could possibly fill the void inside - but to answer your question - physical contact with my girlfriend (in ANY way) was the closest thing I've ever experienced to feeling whole.
Makes me sad