This thread caught my eye, so if one thinks I am crashing that is not my wish nor intent.
I have two relationships that sort of fit this thread:
1) My best friend is my "Big Sister" whom I have known since start of Rush many years ago. We have always been very close and never have had any physical relationship.
2) My girlfriend and I are physical but we are both in the real, working world. After a week of commuting and work, dinner, hugs and kisses is a lot before we just pass out. So enjoy yourselves, in a safe meaningful way and manner, while you can.