Making out=no. That is for private moments.
What is your definition of making out? For me it's groping, french kissing, touching private parts, biting & the like.
Hugging, kissing, cuddling are all good. I've been known to sit between my two guys and play footsie with both of them at the same time, lol.
Basically if you would do something in front of your kids and other given family then it's OK to do that thing in front of partners.
I remember when Possibility and I first started dating Breathes and I were at their apartment & preparing to leave. Possibility and I were trading hugs. Breathes walked up behind me and pinched my behind at the same moment Possibility nipped my neck! Surprised and happy was I